It's disturbing to me how many of the friends I knew as kids were breaking sexual consent laws. In particular, in Michigan, sexual acts between a 17 year old and a 15 year old are considered to be criminal. I could probably find a handful of examples within my young peer group.
Yeah, just imagine the conversation at the Canadian border:
"Passports please. Both of you." "Here." "You are both minors. Minors under the age of 18 without a parent must be accompanied by a signed and notarized letter stating the parent's approval of the trip. What is the purpose of your trip?" "Loss of virginity, sir. It is illegal for consenting minors to have sex in Michigan." "I see." "But not in Ontario -- as long as the minors are within five years of each other in age." "I see. Do you have a letter from your parents?" "Yes, officer. My mom provided condoms too." "Alright, carry on."