My Dad had a sign on the wall somewhere at home:
Kids!!!
Move out, pay your own bills, cook your own food, and do your own washing...While you still know everything!
He he..anyways, my old's were sweet about going out all hours, so long as I played by the rules: If I said I was gunna do something, do it. For eg, if I said 'I'll be home by 12/1/2/3 whatever, I better be home by then, or else lookout. If I said, 'I dunno, probably tommorow sometime', then it was all good as well; they really just wanted to know what to expect.