Japan's Coming of Age Celebrations Spotlight a Shrinking Generation

1.09 Million Young Adults Face a Changing Japan

Japan's Coming of Age Day brought young people together on Monday in traditional clothing and formal attire, celebrating those who had turned 20 over the past year. Behind the festivities stood a striking number: the Internal Affairs Ministry counted approximately 1.09 million people reaching adulthood as of January 1, the second lowest total since the statistics began being compiled in their modern form.

The group included 560,000 men and 530,000 women. The comparison given for the previous year was 1.06 million, identified as the figure for 2024. The ministry's count includes Japanese citizens and foreign residents who have lived in Japan for more than three months, capturing an increasingly international population even as the country loses residents.

Japan's largest generation of new adults numbered 2.46 million in 1970, reflecting the first baby boom after World War II. The latest 1.09 million figure is less than half that peak. Numbers declined through the 1970s and 1980s, recovered briefly to 2.07 million in 1994, and then entered a prolonged decline that has accelerated.

For the young people celebrating, this is more than a smaller crowd of classmates and friends. Their generation will enter workplaces short of staff, contribute to pensions and healthcare for a growing elderly population, and make family decisions amid concerns about wages, employment and care responsibilities.

Japan's challenge reaches across its economy and communities. Fewer people must sustain services and prosperity while supporting more older residents. The country's responses include childcare assistance, greater participation in employment, more foreign workers and investment in machines that can take over some tasks. Each addresses a different part of the problem, and none removes the need for the others.

How Two Baby Booms Shaped Today's Population

Japan's first baby boom after World War II lasted roughly three years, from 1947 to 1949. Many Western countries experienced longer booms, sometimes lasting up to two decades. Japan's shorter surge produced a large group born close together, whose movement through childhood, employment and retirement has shaped the country's population.

Those baby boomers are now entering their late seventies and eighties. Their increasing need for care coincides with smaller generations entering adulthood, creating pressure on both families and public services.

Japan's population pyramid, a diagram showing how many people belong to each age group, once had a broad base of children supporting smaller groups of older people. That shape has changed over decades as births have declined and the elderly population has grown.

The National Institute of Population and Social Security Research (IPSS) projections cited for this demographic outlook show the population younger than 15 falling from about 27 million in the early 1980s to 15.95 million in the 2015 census. Under its medium fertility assumptions, that population would fall below 10 million by 2056 and reach approximately 8.98 million by 2065.

Several dates show how the generations have changed:

• 1947 to 1949: Japan experienced its first baby boom after World War II.
• 1970: The number of new adults peaked at 2.46 million.
• 1994: A later rebound brought the number of new adults to 2.07 million.
• 1995: The population aged 15 to 64 peaked at 87.26 million.
• 2015: The census counted 15.95 million children younger than 15, alongside 77.28 million people aged 15 to 64.
• 2024: The new adult count cited for that year was 1.06 million.

Fewer People of Working Age, More Older Residents

Japan's population aged 65 and older rose from 33.87 million in 2015 to 36.19 million in 2020. The IPSS projection places its peak at approximately 39.35 million around 2042. Even after the number of older people peaks, their share of a shrinking total population can continue to increase.

By 2065, the projection puts the elderly share at 38.4 percent, or roughly one person in every 2.6. This creates a growing burden on the population expected to finance pensions, healthcare and other services through work and taxes.

Japan's population aged 15 to 64, commonly described as the working age population, fell from its 1995 peak of 87.26 million to 77.28 million in 2015. Under the medium fertility projection, it would fall below 70 million by 2029, below 60 million by 2040 and below 50 million by 2056, reaching 45.29 million in 2065.

The projected fall from 77.28 million in 2015 to 45.29 million in 2065 amounts to 31.99 million people, or about 41 percent. This age group must supply much of the workforce, generate economic activity and help fund social security while the population needing support becomes older.

The demographic outlook also describes roughly 2.3 people of working age for each senior resident, with a projected decline to two by 2023 and 1.3 by 2065. These figures compare age groups. Actual employment also depends on how many people work, including older residents who remain employed.

The practical challenge is straightforward: a smaller potential tax base must meet rising pension and healthcare needs. Increasing employment and productivity can ease that pressure, but the scale of the population change affects decisions across government, businesses and households.

What a Shrinking Population Means for the Economy

The International Monetary Fund describes Japan as a laboratory for shrinkonomics, the study of managing an economy as its population ages and declines. Japan's experience offers lessons for other advanced economies approaching similar conditions.

Businesses with fewer available workers must find ways to produce more per employee or recruit people who have been less represented in employment. Productivity means the amount of work or value produced with a given amount of labor and other resources. Better equipment, training and organisation can help raise it.

Japan has already increased participation in work. Female labor force participation has reached approximately 76 percent, while about 25 percent of residents aged 65 and older remain in the workforce. Both figures are above OECD averages. Healthcare, construction and manufacturing nevertheless continue to face labor shortages.

IMF research describes how expectations about global population growth have changed over recent decades:

Demographic change is having a fundamental impact on the global economy, but not in the way we once thought it would. A mere five decades ago, some observers were predicting that the human population was too big and would soon strip the world of resources. But the doomsday scenario of mass overpopulation did not materialize. Rather, for the first time in modern history, the world's population is expected to virtually stop growing by the end of this century.

Japan is at the leading edge of that shift. A smaller and older population changes consumption patterns, places pressure on pensions and healthcare, and complicates monetary policy. Demographic forces can depress the natural rate of interest, the interest rate consistent with an economy operating in balance, making it harder for conventional interest rate policy to stimulate activity.

Economic management must therefore account for both the number of people and their ages. More employment among women and seniors helps sustain output, while better productivity can allow fewer workers to provide the goods and services society needs.

Three Decades of Efforts to Support Families

Japan began a long series of responses to falling fertility in 1990, when a rate of 1.57 births per woman was considered alarmingly low. The fertility rate describes the average number of children a woman would have over her lifetime if prevailing birth patterns continued.

Government measures have included mandated childcare leave, more subsidized daycare, campaigns encouraging men to take parental leave and share household responsibilities, and efforts to reduce working hours. The policies seek to make raising children more compatible with employment.

Cash allowances for families with children have been provided since 1992. In June 2023, Prime Minister Fumio Kishida's administration launched the Direction on Strategy for Children's Future, seeking to reverse falling births through increased child allowances and greater financial support for childbirth, childcare and education.

The government also planned baby bonuses of 100,000 yen, approximately $670, for expecting mothers. Such assistance can reduce some immediate costs, while childcare provision addresses the continuing need for parents to combine paid work with care.

Japan's fertility rate nevertheless remains around 1.2 to 1.3 births per woman, well below the replacement level of approximately 2.1 needed to maintain population size. Researchers have pointed to support that is modest compared with the cost of raising children, workplace and social norms that discourage men from using parental leave fully, and wage stagnation and insecure employment that make starting a family difficult.

Declining fertility also reflects changes widely regarded as positive, including greater educational attainment and employment among women, better access to contraception, and changing values around personal fulfillment and family life. Financial payments alone leave unresolved the everyday pressures of working hours, unequal domestic responsibilities and economic insecurity.

Foreign Workers Become a Larger Part of the Response

Japan has also begun accepting substantially more foreign workers after maintaining some of the most restrictive immigration policies among developed countries for much of its modern history. Until relatively recently, foreign workers accounted for less than 1 percent of the labor force.

Their number rose from just under 500,000 in 2008 to approximately 2.3 million in 2024, described as a quadrupling over that period. Many come from Vietnam, China and other Southeast Asian countries, filling roles in manufacturing, elderly care and other sectors short of staff.

Japan introduced the Specified Skilled Worker System in 2019. It created a route for foreign nationals with intermediate skills to work in industries facing severe labor shortages, broadening the ways employers could recruit from abroad.

The government subsequently announced an Employment for Skill Development program scheduled to begin in 2027. It will replace the Technical Intern Training Program and is intended to provide better employment conditions and routes to residency over longer periods.

Foreign residents still make up only about 2 to 3 percent of Japan's total population, compared with an OECD average of 10 percent. That gap shows the cautious scale of Japan's approach and the scope for further expansion if political and social conditions allow.

These reforms took place under governments led by the conservative Liberal Democratic Party, with relatively little public opposition. The response suggests that Japanese society may be more adaptable to increased immigration than longstanding assumptions about its resistance would imply.

Robots and AI Take on Some of the Missing Work

Japan's investment in robotics and automation offers another response to fewer available workers. Automated manufacturing lines can sustain production with smaller staffs, while devices designed for elderly care can reduce some physical demands on caregivers.

Examples include humanoid robots that lift and transfer patients, sensor systems that detect falls without using cameras, and automated checkouts that reduce staffing needs in shops. The Japanese government allocated approximately $440 million for robotics development between 2020 and 2025, with particular attention to healthcare and elderly care.

Artificial intelligence could also help with labor shortages in knowledge work, improve productivity in services, and provide companionship and monitoring for older people living in isolation. Together, AI and robotics may help sustain services and quality of life with fewer people available to deliver them.

Caregiving, teaching and many service jobs also require emotional understanding and complex social interaction. Machines can move patients or process information, while people remain essential for judgment, reassurance and relationships. Technology therefore forms part of a wider response alongside employment policies and immigration.

Japan's approach connects a practical need with its strengths in robotics. The question for workplaces and care services is how to combine machines and human workers so that staff can spend more time on tasks requiring personal attention.

Why Other Countries Are Watching Japan

South Korea, Italy, Germany and China also face fertility rates below replacement level and rapidly aging populations. Japan's position makes its policy choices relevant beyond its borders, especially for countries entering what demographic analysts describe as the first wave of aging.

The United States provides a comparison. Its fertility rate is approximately 1.6 births per woman, also below replacement, but higher immigration has helped maintain a more favorable demographic balance. Its median age is 38.5 years, compared with 49.8 in Japan. The median is the age dividing a population into two equally sized groups.

That difference of 11.3 years affects the composition of the workforce, the demands on pension systems and the prospects for economic growth. Immigration and fertility together help shape how quickly a country ages and how many people enter employment.

Research from the Center for Retirement Research at Boston College presents Japan as an early indication of what other developed nations may experience. Fertility in the United States has declined over the past 15 years, and projections suggest similar pressures by the middle of the century without increased immigration or substantial policy changes.

Journalists covering demographic trends expressed that comparison in these words; the observation was attributed to them without identifying an individual speaker:

This is a real barometer of what a number of countries, the United States included, is going to confront in terms of demographics in the next decades and even centuries.

Japan's experience offers evidence about how childcare support, employment changes, immigration and technology work in practice. Other countries can examine both the gains and the limits as they prepare for their own changing populations.

Smaller Generations Change Schools, Towns and Families

Japan's falling number of children has reduced school enrollment and led some schools to close permanently. Universities expect smaller applicant pools, creating the possibility of consolidation across higher education.

Rural communities have experienced depopulation for decades, with millions of abandoned houses scattered across the countryside. Young people continue moving to cities for economic opportunities, speeding population loss in smaller towns and widening differences between thriving metropolitan areas and struggling regions.

Families are changing too. Fewer births mean fewer siblings and cousins. Expectations that children will care for aging parents become harder to meet when one child carries the responsibility alone or when relatives live far apart.

Older residents face greater risks of isolation as communities shrink. Limited mobility becomes more difficult to manage without nearby relatives or other support, linking population change directly to daily needs such as care and social contact.

Workplace and household expectations continue to influence these pressures. Policies encourage men to do more childcare and domestic work, yet traditional gender roles persist. Expectations that mothers should carry most household responsibilities can discourage women from combining careers with children. Changing those patterns may matter as much as financial assistance in making family life more manageable.

What Today's Young People Expect by 2050

Japan's projected total population in 2050 ranges from 105 million to 87 million, depending on assumptions about fertility and immigration. The outlook anticipates a much smaller population of working age, with people older than 65 making up nearly 40 percent of residents.

These are projections based on assumptions, and the range reflects different possible population paths. The figures point toward substantial adjustments in employment, public services, family care and community life.

Keiichi Yasunaga, a student aged 19 preparing to enter university, described his expectations for that future:

It is hard for me to imagine what it will be like by 2050. I think AI will be at the center of our daily lives. I also think pensions will eventually disappear, and the retirement age will keep getting pushed back, to 80, or maybe even 90 in the worst case.

Yasunaga's comments express anxiety about working longer, depending more on technology and receiving less retirement support than earlier generations. Such expectations can influence decisions about careers, having children and politics, potentially reinforcing some of the pressures young people already face.

Some analysts offer a different perspective, suggesting that smaller populations could reduce environmental pressure and congestion while creating opportunities to organise society differently. Finland and Sweden are cited as examples of countries maintaining strong economies despite population decline through investment in education, research and development, and innovation.

Japan's central task is to adapt its institutions, economy and culture to fewer people and a different balance between generations. Its success or failure will matter to today's young adults and to other countries approaching similar demographic conditions.

Key Points

• The Internal Affairs Ministry counted approximately 1.09 million new adults, including 560,000 men and 530,000 women, the second lowest total on record.
• The new adult generation peaked at 2.46 million in 1970; the comparison figure identified for 2024 was 1.06 million.
• IPSS projections put the population aged 15 to 64 at 45.29 million in 2065, down from 77.28 million in 2015.
• The elderly population is projected to peak near 39.35 million around 2042 and represent 38.4 percent of residents by 2065.
• Fertility remains around 1.2 to 1.3 births per woman despite decades of childcare support and financial assistance.
• Foreign workers numbered approximately 2.3 million in 2024, compared with just under 500,000 in 2008.
• The Employment for Skill Development program is scheduled to begin in 2027, replacing the Technical Intern Training Program.
• Japan allocated approximately $440 million for robotics development between 2020 and 2025 as technology became part of its response to labor shortages.
• Population change is reshaping schools, rural communities, family care and expectations about work and retirement.