How's the government going to decide where to put people? The poor people get to live in the richest neighborhoods in NYC? Or do they get pushed out to the cheaper areas of Harlem? In the first scenario, the costs are insanely high. In the second, you're forcing the poor into a bad neighborhood.
Food: who decides who gets what? Vegan options OK? Food allergies? Only organic?
Whenever personal decisions are left to the government, things get bad.