[inigyou]

They manage, but it's not a good experience. The apartments are usually too small for families and the ones that are big enough are too expensive. This is solvable, but has not been solved.

Think about having to share a bedroom with your child, and when they're old enough to need their own one, putting up a partition wall and having each be less than half the size of a normal bedroom, very cramped. And you don't get a living room. (If you did have a living room, now it's your bedroom while the child gets the actual bedroom)