SIxteen! So I squarely fall into your category.
And no, I don't post about tech :D
It's true that teen bloggers do not have a forum like IB, but that doesn't mean we (or at least, I) don't enjoy visiting such places. I have tons of fun reading IndiVine posts. I know the popular people here from the number of times I've spent giggling at the craziness that unfolds in IndiTalk, though I've never joined one conversation. And recently, I took part in my first ever IB contest.
I admit that sometimes things do get lonely for teens in an adult-dominated blogopshere... but I strongly support #NoAgeDiscrimination. I want my stuff validated for its merit, not because "for a person of your age, this is pretty good."