I didn't read the whole thread, but everyone seems to agree that it's their house and therefore it's their rules...
I'm not trying to critic chin311, I'm just giving my point of view on the general topic.
Well I don't agree with everything. Parents should watch what their kids are doing and all that, but they shouldn't CONTROL their life. My mom would let me come back home at 3 in the morning when I was younger than 16 (I don't remember exactly how old, but I didn't have my licence at the time). I never got into any trouble and, to tell the truth, none of my friends ever got into any trouble. As long as I told her where I was going and when I planned to come back, she was cool about it.
Also I don't understand why some parents start charging their kids for rent. Hell, my mom bought the house by herself and she never asked me to pay for anything even if there is only one income in the house. Yes, I did work every single summer since I was 14, and worked 3 winters as a hockey referee and one as at a gas station so I never really had to ask her for money... but still. I know not all parents are able to pay for university/college for their childs but if they are smart enough to get a job and pay for themselves, I DON'T UNDERSTAND AT ALL why they would charge for rent or anything like that.
Thinking that my mom would charge me a rent isn't even something I have thought before reading this thread!!! Come on, why did they had a kid if they didn't want to help them? You're not 100x more expensive to them that you were the day before you turned 18.
Anyway I just don't understand that mentality I guess? All that doesn't sound like parental love to me anyway.