Well, I am pretty sure you are being sarcastic, but there is truth in what you are saying. I have a teenage son, and based on what I am seeing, here's what I think:
There is an overabundance of false self-esteem pumped into these children - They are for the most part, given everything they want, work for nothing, their parents fight all their battles for them and compensate for every failure they have. The result is that they have no sense of pride in anything they do, very little work ethic, no self-reliance and no sense of value in themselves, no sense of purpose. To look at them you may think they are quite spoiled, egotistical and arrogant. Underneath, there is a whole other thing going on.
They are stressed and insecure in part because they have been told there is no need to improve themselves and they know that it's not the truth. They are spoiled and selfish, and in a deep place inside some of them hate themselves and feel empty. The ones who cut themselves are doing it, many times, just to feel something, anything at all.
True self-esteem comes from self-reliance based on discipline, hard work, a sense of duty and character building in faith.
The teens two hundred years ago, knew what work was - their survival depended on it - they knew what the real world was, they had a sense of purpose and knew that what they were doing was valuable. There was a simple 'right and wrong' that was pretty consistent wherever they went.
I see a huge difference in children today who are not given everything and who must figure out ways to work for the things that are not 'necessities'. I'll stop here, I have to go. I hope I made some sense.
Teens are also under astounding pressure to succeed by the very people who fight their battles for them. Yes, they are spoiled beyond belief, but there has to be more to it than that and boredom.
Then, of course, there are the ones caught in custody battles who are old enough to understand what is going on.
My mom is teacher in high school. What is being done to some teens in the name of progress and success is criminal.
Bingo!