So here is a kind of funny story, I've always been told I look older than I am. My first job was at Kmart (loved it btw, perfect job for a high school kid) and I would have people ask me all the time if I had kids, and if I was married and stuff. I was only 16 at the time, I had math homework to do after work.... so no I didn't have kids or married.
I don't really drink, and I don't smoke or anything, but on my 21st birthday I did what every 21 year old does and went out and bought some beer. I didn't get carded, after checkout I pulled out my license and asked if they wanted to check it since it was actually just my 21st birthday.
Yet the one time I actually did get carded for something, was 3 days before my 17th birthday. I went to see Supercop (love me some Jackie Chan), I didn't even know it was rated R ... and they actually carded me ... 3 days before I turn 17. I don't usually like to make a scene but I argued with the guy, I said what will change in my brain between today and 3 days from now that will not make me go on a murderous rampage after seeing this horribly violent movie. I know its not the guys fault, he is just following the rules, but man I was so pissed, really wanted to see that movie.