If I were living alone I could definitely live in a really small house. I don't like owning a lot of things, so I wouldn't be worried about the space. As long as I have a cooking area, a bathroom, a bed, and a small living area for a couch and maybe a TV and computer I would be happy. What I would want is a big yard though, or space to move around outdoors. Having a tiny house or apartment in a really urban area where there's not really anywhere to hang out outside with some privacy would be tough for me.