I’m not saying that Japan has it all figured out, just that cities can be built to allow many families to thrive without a car. Japan has their own set of issues w.r.t birthrate, but it’s partially a different set than those seen in the US.

OK. Can you get a double stroller into busy Tokyo subway during the rush hour?

Probably not, but I barely see strollers over there anyway, and it’s also rare to take kids on the train/subway during rush hour. Kids are usually carried or toted in one of those front-body-kid-carriers (sorry don’t know the name) until they can walk, after which they walk (or for longer rides, get taken on a bike). If I see little kids on the train it’s most often before or after rush hour during the slower times.

A lot of American norms don’t carry over.

Thank you for illustrating exactly why dense cities are inimical to having more than one child.