I may get voted Bad Parent of the Year Award, but my daughter has been going with me since she was 14 (now 20) and she's been to them all- Jungle, Rooftop, American Pie- even some road parties. Of course, I was always with her- so maybe that makes a difference and she only went to Rooftop and American Pie when she was 18. She's a smart kid though- I think it also depends a lot on how easily influenced one's child is. Some of the most sheltered ones really end up doing the crazy stuff once the "leash" is off.