Comment by cyberax

10 days ago

We do. It's called "urbanization".

Large cities are inherently inimical to living in large families. And yes, it was apparently the case even in the Roman Empire.

Decline happens also in territories that had been urbanized decades or even centuries ago but had positive fertility rate until 2010s. As I said you can pull a patchy blanket of micro-theories explaining each region but not one theory that accounts for them all.