i dont think they're over protecting the young people.........have you seen the movie "KIDS".......if ppl under 18 are not children who are....and getting married at 15 is a no no everywhere not just in the US and i personally dont care if people wanna have sex in the public........i think u get a different kindda high when u do things like that....just like bungy jumping or skydiving or jumping off a cliff......but i definitely would not wanna see my parents or my sisters having sex in public....