Except western society, and particularly Anglosphere. Our culture prioritizes individual success over the family unit. It's actively increasing the costs and risk of family formation, and decreasing the number of children it's possible to have.

This is very recent (and obviously unsustainable with a negative birth rate).

Cf. the Shakers, who practiced celibacy — and, no surprise, have essentially died out.

https://en.wikipedia.org/wiki/Shakers