I'm turning 21 this year and people think I'm 16 or something... And the worst thing is, they treat me like it, you know, just the little things that piss me off. So, I've been done with High School about 4 years now (European, it's different system), but to go to the college I wanted to, I had to get my Science at High School level, so I did, at a school with people that have flunked they finals and are 17 or 18... People actually asked me if I had skipped a class... Grrr.
I have to pull out my drivers licence as an ID cause people just never believe me... I mean, It's flattering to look younger when you've passed 25, but not when your 21 and people treat you like you're twelve...