What makes teenagers different?

I think, teenagers are different to children because teenagers can do something for themselves such as go to a trip with friends and have freedom more than children do. Some teenagers like to play music, and has star to follow. Many teenagers use much time to play social network and they play everywhere from their phone. Teenagers are in the middle everyone life, so the life have change more children such as school or what do you want to be in the feature. Moreover, it is different adult because adult work so much and has small free time to relax or somebody study more, so have more nerves teenagers. Teenagers have freedom so can do anything are they like such as watch movie with friends, go shopping, follow the star did they like.