My view of teenagers today is that they are essentially not any different than teenagers were thirty years ago. Some of the details of teen life have changed, but the basics remain the same.
It is true that teens today are exposed to more things than teens were thirty years ago. The level of exposure to sexuality is much higher today given the rise of the Internet and of cable channels like HBO that show nudity on a much more regular basis than occurred in the early 1980s. Teens today have all sorts of electronic devices that allow them to be entertained and connected wherever they are.
But underneath all of these details, I would argue that teens are not much different than they were when I was a teen. Teens still feel that they are at an in between stage in life. They still feel that they should be given more freedom and respect by adults. Teens are still trying to figure out who they are going to be. They still “try on” various personas at various times. They still worry about whether they will be accepted by peers. These are things that seem to be relatively timeless. This is why my view is that teens today are essentially similar to teens thirty years ago.