[sim1collins]

We address this somewhat in the document. It seems the effect affordable childcare has is more limited than one would hope, though it certainly helps!

That said, having kids above repopulation rate might not just be about making things affordable. If people don't have a strong reason to have more than two kids, and if kids don't have tactical value like they did when they contributed to the family business (e.g. did farm labor, helped around a household, provided old-age care), then it can be difficult to justify having more than two even if raising kids is totally cost neutral (simply because it's more complicated to have a larger family—more of a logistical and mental burden).