[yibg]

Depends on how you look at having children I think. If you:

1) See having children as a right and benefit to society, then society should shoulder at least some of the "burden" of it. By providing child care, (paid) maternity and paternity leave etc. Many countries already do this.

2) See having children as a privilege and a choice made by individuals knowing there will be sacrifices in time, finances, career etc. In this case, the individual (or couple) deals with the consequences. In some cases, incentives can align such that companies provide paid leave, but at least right now it's not the norm.

Looking at countries that provide paid leave vs those that don't, the ones that do seems to have a healthier society.