I have a friend who is 4'11" and she is constantly being mistaken for younger than she is (she's my age, 20, but she's very petite and could probably pass for a 12-year-old if she wanted). She isn't too bothered by it, though - says she doesn't mind getting kids' menus, especially when it involves free food! Me, though...I used to be assumed to be a few years older than I was, simply because of my height (I'm 5'7" and got asked several times when I was a freshman in high school where I was going to college "next year" ), but now I guess I probably look my age.
that' totally my case... I'm always the one who have to show ID at the entrance of movies, bars or when I buy booze. People don't take me seriously when I say that I finished the college, or sometimes they ask me when I going to graduate from High school . I look younger than my baby sister, who is 4 years younger than me, when someone meet us they say at first that she is my older sister.
I look funny when I go out with my bf, who looks older than his age, and he's way bigger than me. Some people had said that he's a green old man, and stuff like that when in fact, he's only 2 years older than me.