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I don’t fault folks who have three kids, but with fertility rates plummeting, it’s not something that should be optimized for. Families are getting smaller over time.

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The question is if families are getting smaller because parents don’t want more kids or because of regulation[0]. Maybe requiring people to have smaller cars or use public transport would further cut the birth rate.

I’m only half-serious. I know there is good reason for public transport or having smaller cars in urban environments.

0: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3665046

> Maybe requiring people to have smaller cars or use public transport would further cut the birth rate.

This should be easy enough to test by comparing against cohorts in Europe and Asia.

Generally the deciding factor has been birth control. The more birth control is available and accepted as a choice, the more women choose to postpone their first child, which automatically leads to having fewer children.

Fertility rates plummeting is not necessarily a good thing in the long run, so maybe having kids should be incentivized.

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