As a parent to older kids, I would be appalled to think my child, that I had allowed to stay under my roof, was whining on the net about how unfair her life was.
It's about personal responsibility. You are now legally an adult. You make a choice. Take advantage of your parent's generous offer, or get out and make it alone.
My own son is 17, and while I don't ask him for money, HE felt he should give me some when he was working over Christmas. He does lawnmowing, dishes, laundry.. and any other chore I ask without complaint. He works about 20 hours a week and has more than that in Uni contact hours.
He appreciates that I have worked hard to provide for him.
If you have an issue with your curfew, which I do understand, have a chat to them, like another adult. Unfortunately tho, as it is their home, you will have to respect their final choice.
Myself and my hub has discussed what will happen if either of his kids want to live with us later; they are 17 and 19 and seem to have a similar attitude to you; beleive me, they will have to act like adults, or get out.
No whining about contributing to household tasks. Contribute to costs. Get a job.
This is how adults behave.
Just because your parents have the money doesnt make it yours. I can guarentee they didnt get much off their parents. They have earned theirs.
My opinion is only one of many, I feel as parents our job is to get our kids ready for independant living.
My son wont be living with me, very shortly. I feel pretty confident he will be just fine.