I live in a college town and have been dating girls 19-23 (I'm 27). They are, almost without exception, incredibly ignorant, naive, vapid, and annoying. I've dated a few women in their late 20s and 30s and have not experienced this. This suggests to me there is some age when girls (and people?) really start to grow up. What age is this?
FWIW, I had the same opinion of college girls when I was in college myself, which partly explains why I didn't actually enjoy dating that much.