It’s generally true that as people become richer and better educated, fertility goes down. In the US, I think it’s also true that women have fewer children than

It’s generally true that as people become richer and better educated, fertility goes down. In the US, I think it’s also true that women have fewer children than they would like (common reason being that it is expensive in absolute terms and opportunity cost) so another question is whether the state should do things to allow people to do the things that both they and the state want.