Subdivisions of starter homes (defined both by size and price) tend to attract young families

I think it’s more that that cohort is very likely to be looking at houses at the same time, and value the same kinds of things, so naturally they end up in the same place.

Our place is ‘far’ (10m walk, this is Tokyo) from the nearest supermarket, a bit small, but it’s also connected to a tiny street that allows kids to play safely, 20s walk to the kindergarden, 5m walk to elementary school, and there’s parks around everywhere. Apparently those are things that a lot of young parents value ;)