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by akeruu 3637 days ago
> 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