The kids that come up to me generally are around 12yrs and younger. The teens are much more respectful, and generally very few teens come up to watch. I dont know why, but I guess teens might perceive RCs as geeky.

I do notice the older kids (10, 11, 12) are much more respectful and I can tell them all about the hobby, and moreover, the responsibilities. These are the kids that are the next prospects for getting into the hobby. They are shocked initially at how dangerous our RCs can be, and they are also shocked about how much they cost, even the cheap chinese clones, but I try to break it all down to them, the good, the bad, and the ugly, so that they can seriously consider if RCs are something they really want to do. It's like learning to play a guitar: Yes it is fun, but you also have to have responsibility and discipline otherwise you will wreck the RC or you will play that guitar horribly.