Median age 46.6; world's oldest major population. Strains pensions, healthcare, and labor supply.
One of the world's lowest fertility rates (~1.3). Driven by high costs, female workforce participation, shifting attitudes toward marriage/children.
Women underrepresented in leadership, pay gaps persist, cultural barriers limit advancement despite legal equality.
Rising single-person households, eroding community ties, tech-driven disconnection—especially among elderly and youth. Linked to loneliness, depression, kodokushi (lonely deaths).
Growing wealth gap; rising relative poverty, precarious employment (freeters), and regional disparities fuel social tension.