I'm a university student who lives at home. I have no need to communicated with my parents on facebook. Not only do they interrogate me everyday about what I'm doing/what I will be doing, but I don't need them questioning every single one of my photos or status updates. If we were living away from each other, yes, facebook might be a good tool. But when you're living under the same roof? Just a way for them to get into my private life in my opinion.