I'm 15, I spend about 5 hours a day on the computer, maybe more, maybe less, it depends. For this week and next, it's spring ball (football) so I don't get home until 6 now, and that's early.
But school is almost over so I don't have a lot of homework. I'm usually on from about 7-12, unless we go out to eat or visit family.
I'm about to lay a job at a local computer shop, which is really sweet, then I can make money doing what I'm good at.