Man, I feel young.
I'm 21 (22 in two months), and I'm one of the few people I know that game that didn't start in elementary school. I played in my first game in 1999, my junior year of high school, a solo AD&D thing that I didn't get into too much. Then 3rd Edition came out a little while later, and that's where I got my start outside of Mage: The Ascension.
I was born in '82, so at least I can kinda pretend to have been there in the glory years. Kinda.