Providing someone is not obviously immature, I do not tend to restrict myself based on age, particularly around here, where a great deal of people are both noticeably younger, and older than myself. Once people have reached a sort of competent age of maturity it's a bit of a free for all really. Besides you can't really choose subjects based on age, everyone's a little bit wacky, and I'm pretty sure I don't do much 'normal' 22 year olds do.