Teens are not individuals as in the past. Anywhere in the world they are listening to basically the same music, they're wearing the same baseball cap, the same T-shirt, the same Nike shoes and Levi's jeans. They watch the same movies. The script in their magazines may vary, but the pictures, people and stories are the same. Teen culture today is represented in and by the media.
Children are much more alone today.
Teens' self-worth is very low. Many are forced to grow up on their own without encouraging feedback from two parents. Loneliness is a big issue. Their identity and values are based on who they're with. Christian teens can act 'Christian' in their youth group yet be someone totally different among their peers at school.