I have been to Bonnaroo twice (2012 & 2013) and it is a great event. Even without perverted transvestites back the. it is was a place to bring your children. When I went about 1 in 6 of the women went topless - even the ones who shouldn’t. I enjoyed it all but it isn’t a place for children.
I'm of the opinion that rock concerts/festivals don't need to be child-friendly. Really, 13 and up. That was the age I started going to concerts, first with my mom and then with my friends.
Of course, it goes without saying that the transgender lobby is absolutely fighting for access to young children.