I do not allow my 17 year old son to be at someone's house unsupervised. I caught him drinking about 8 months ago. I do not allow him to go to his 17 year old girlfriend's house at all because her father does not share my beliefs on parenting and I am aware that she has consumed alcohol too,over a year ago. Although I forbid my son to do these things I am pretty sure he does them anyway, and when I find out I ground him. He gets very good grades and I have little problems with him on other issues. Should I try harder to enforce these rules or is making a 17 year old constantly supervised and not allowing them to go to their girlfriends house impractical? Is it a bad idea for me to allow no supervision sometimes? He tells me I am not helping him become an adult by instituting these rules, which I do not plan on lifting until he goes to college. He says the rules should grow as he does. Should I keep these two rules and try and minimize times he can make bad choices, or give him a little more freedom?