I've been thought to be 2 years older than I am for most of my life. When I was younger it was because I was so tall, but since I was 14 or so people have told me it's because I act more mature than other teenagers, yet I don't look any older than 2 or so years older than I am? Something like that I'm almost 18 now and when I go to restaurants I am asked if I want an alcoholic drink. And people usually ask if I'm 19 or 20, but I almost never am asked if I'm 17/18.