I'm 27 and live with my family. I live in one of the most expensive places in the world and I'm a college student so I think that it's okay. If I were living in cheap area I would probably move out on my own.
Well I'm in college, so I have an apartment (house in two weeks) where I live at most of the time. However, I'm only about 45 minutes away from my hometown, so I'm able to frequent home a lot, and I spent my summer living out of my parents' home rather than my apartment, simply because I like spending time with them.
I'm 20.