The solution is walkable towns/cities. Not deliveries hahaha.
But the US also allows suburbs, and it turns out a ton of people prefer those, having backyards for their kids.
I love cities but I'm also well aware that tons of people don't want to be stuck in cities.
Having walkable and bikeable destinations is compatible with back yards. It just needs to be legal to build it.
You have to get pretty damn rural before you need anything more than a bike to access a convenience store.
Obviously the absolute overwhelming majority of Japanese live in cities anyway, so it's not really comparable to the US.