Maybe there are places where there are rich teenagers with a lot of spare time, but I guess thats not the target of bitcoin community as they are not so common.
For example I was talking about the bitcoin with my nephew and he was not interested in the bitcoin and he is 16 now. I had told him two years ago about the bitcoin. He is completly not interested in buying any btc what so ever. He is such a kind of a kid with a generous grandmother but his mother takes all account what he do with that money.
When I was a teenager I usually had no money and when I got some for my birthday or on occasion I usually spend it on computer games or pizza and movies with friends.