> Why ? Sorry for brevity, this only a HN comment but here are some highlights. The main reasons are low birth rate and low immigration and due to various fac

> Why ? Sorry for brevity, this only a HN comment but here are some highlights. The main reasons are low birth rate and low immigration and due to various factors : Low birth rate : Fewer / later marriage, Poor work/life balance, Small living space, Hight costs of raising children Low immigration : Japanese people view themselves as "uniform" (which is debatable), Country closed to foreigners for two centuries