It is far worse than this. For the better part of the history of the world, basic arithmetic is 1 man and 1 woman produce > 2 kids. Those kids grow up and even if one of them is happy to live in their parents' home, the norm, hell, the EXPECTED norm in american society is that the adult children go out and make their own home. How are they supposed to do that when there are no homes available because all their neighbors sitting on the local board decided that you can't build any new homes? This kind of selfishness is infuriating and utterly indefensible. A system that allows such situations to occur is undemocratic and un-civil.