[yutijke]

Aren't countries like Japan or South Korea known for gruelling work hours?

I think the economic system itself is not conducive for healthy families where both parents get sufficient time to spend with kids or family.

In the past this may have been papered over with the cultural expectation that the woman takes care of the house and family and the man works, but this cultural framework has been broken and done away with without any replacement, cultural or economical.

[satvikpendem]

In places like Denmark and Norway with good healthcare and childcare, people are still not having kids.

[SXX]

Both countries are still very expensive to live in.

And at least Denmark have really high taxes up to ~60%.