I'm older than that, but I play online too. Kind of hilarious when someone describes you as "that A-hole kid who took your head off with the sniper"
On the downside, you do gravitate to more mature players on your friends list. And I've lost a few. One who had JUST been diagnosed with sleep apnea who fell asleep (not the first time) driving home from the swingshift and crashed. One heart attack. Leukemia. You only know one side of your online friends, but you really get to know that side of them well, what with all the bugs and problems with games where you end spending more time in the lobby than playing.
I can never think of Mental (his gamertag) without smiling because he was so freakin' funny. One time we were talking about dinner, and he had gone over to Moochie's (another player) house for dinner and they had Moochie's "white chili" And Mental said "Man I had instant Diarrhea! But it was the good kind..." And I said "What do you mean
the good kind?" And he said "You know. The kind that don't hurt. You just sit down, don't know it's comin', and before you know it, you just get cleaned out!" I don't ever remember laughing harder!