Some teenagers will interpret sensible parenting around driving as an abuse of authority. Some will see parents as unfairly interfering with the "right" to drive. Some parents, in fact, like to think of this as keeping kids under parental control.
I don't think of it that way. What we're heading for on this website is a contract between parents and teenagers regarding driving. Instead of thinking of this as exclusively the exercise of parental authority, or "reining" in teenagers, here's another way to think of it.
This person, my child, is going to be driving a car that has my name on the title. This person is not an adult and I still have legal responsibility for them. I am likely to be seen as sharing any liability--and blame--for anything my child does with the car. (Keep in mind, teenagers do not "own" cars. Don't "give" your teenager a car or he or she WILL think he or she owns it. He or she doesn't own it. You own it.)
So, I say to this person, my child, if you're going to drive a car with my name on the title, with my insurance, while you're still my legal responsibility, we're going to have a contract. That's partly to protect you, but it's also to protect me!