Theory

I have this theory: The teenage years are when children should be given more freedom of choice and will, this is their time to experiment within the safety net of their parents. It is likely that when they move out, when parents usually relax boundaries and set them totally free, they will no longer have a very secure safety net. The freedom can go to their heads, and they will often make bad choices. They shouldn't be given total control as teens, they still need boundaries, but they should also be treated as adults, with many chances to prove themselves.
Parents shouldn't be completely removed, but they shouldn't hover over their child's every choice and move. Rather, they should let the child know that they are there for them, and should always put down whatever it is they are doing in order to talk. Parents should be supportive, and open to everything their child has to say.

I will probably change this as time goes on. I might add things I have forgotten, or have not discovered yet. Thank you for reading, I appreciate your every insight on this post :)