I don't know what would happen, but I would NOT be the one!! Check this out - an 18-yr old 'girl' moves out of her mom's house and into a friend's basement, but she's suing her parents for child support so she can go to college!!
I have no words for this. You can't have your cake and eat it too. If you think you're grown enough to move out and live by your own rules, then go ahead, but think you can force me to support you. Shoot. I'd have to put all my money in some offshort account or something!