Love the comment about what trial lawyers have done to the trampoline (and other outdoor entertainments). I'm sure everyone has seen the email that's gone around over the years about children growing up in the 50s and 60s that didn't have bike helmets, didn't wear seatbelts, etc. etc. - and somehow we survived.
I must say I have been guilty of overprotecting my children, keeping them away from "dangerous" sports and monitoring their every move (somehow, I forgot my youthful days spent prowling around the woods, climbing trees, skating on a pond, playing games and hide n seek till dark).
The Boy Scouts changed all that. Now my boys go camping, rock climbing, rafting, play rather creative sports during down time at camp, light fires, work with knives, get VERY dirty, scraped up, banged up, and have a great time doing it!