There are films that come to adults mind as bad becuase the films are about gangs such as shank there is an actor called adam deacon that is in most of the gang films but he sets an example in real life his character is a teenager whos use swear words.
Conclusion:
there is types of media that shows teenagers in a bad way e.g. News,T.V,Films in these media there are loads of peices that make teenagers look bad and that they always do bad stuff. Teenagers are not all bad.
Teenagers dont always wear hoodies that is just another stereotype of teenagers there is loads of stereotypes teenagers. There are adults that think all teenagers are bad and give the impresion to other adults why they are so bad when not all teenagers are bad.