In general, the teenegers will wanted be perfect especially the woman, but the physical isn´t important always.
The main reason is that, everyone wants to be skinny and beautiful. They think that unless they look great, they won´t have any friends. But we all look different and that is what make us interesting. And the personality is the most important thing anyway.
Another reason is that the boys make the same too! I believe that we need to be more selfconfident because they being scared of let down their friends or classmates.
Some people think that the physical it´s very important but that is wrong, the important is to be a good person.