I know families here who live in one room yurts.

I know families in New Mexico/Arizona/Utah who live in single-room homes.

I've stayed with families in the Arctic who all live in a single room, family and guests.

I lived for several months as a teenager in a teepee with multiple families in the teepee.

Is it child abuse not to live a Leave-it-to-Beaver middle-class American lifestyle? (Actually, if I recall, Wally and Beaver shared a bedroom in that show...)