I personally feel teenagers have to be taken care by parents in a very special way because this time is very important for them for the growth and betterment.
Now days we could see most of the teenagers are disobedient and they are out of control, this is because they were not told what is right and wrong, may be parents and teachers did not brought them up in good way both the parents and teachers play very important role in their life.
Parents should spend some time with teenagers to know what are their intentions, should appreciate their ideas and encourage them to achieve their goals.
If we tell them with love, I am sure they will listen parents should be good friends, guide and philosopher to their children.