11, at my birthday party. My second time ever playing i played at some ones house. I was running a little behind, and these two guys (who were huge dicks) were not pleased cause i had to reload and was taking my time getting to the other side of the field to start the game. They shot me multiple times (about 8 times in the back of the head, 12 or so in my butt and another 8 or so in my thighs)and i sat out the rest of the day, it hurt and these guys were in there mid 20's and just lit up some 11 year old. Luckly i kept playing paintball. These guys still live in my area and i would love a re-match today, i have a feeling a few 'bonus balls' would be an understatemant for what i would do to these guys.
I started at 1. I had a paintball birthday. I didnt play again for a few months. I never actually PLAYED paintball seriously like anyone here. I just played a few games here and there. Maybe 10 times I've paid for entry in my life. I'm here for the lounge.
What are you worried about? Anyone can pick up a sport if they're enthusiastic about it. You're at a good age to learn anything you want but don't let age stop you from pursuing new skills later in life either.