I'm going to have to disagree with you on this statement, and we'll have to pleasantly agree to disagree and chalk it all off to a generation gap difference of opinions...
I happen to know 15 year olds today (as I am currently 40 year old). I knew 15 year olds 10 years ago (when I was 30), and it just appears to me that as I get older, the younger kids do not seem to care nor seem as astute as the kids did when I was that age, and again, I'm willing to bend that comment along the lines of a generational difference... but what I can attest to is that when I was 15 in 1982, kids that age seemed to be more on the ball when it came to politics, environment, religion, state of world affairs, etc... Kids today may be knowledgable of all those things, but they come across as very indifferent to the point that they look and/or appear stupid and completely uncaring of everything, which is why I disagree with your comments. Back in the 60's, 15 year olds and even 30 year olds were matching lines and stood up against corrupt politics why people nowadays could not care less even though they watch possibly the most ignorant and corrupt President that ever defiled the hallow halls of the White House... and I also know that I am generalizing here as I do understand that there are brilliant kids today that do care and give a rat's arse about the affairs of the world, just as I am also aware that there were ignoramus kids 40 years ago...
Just my two cents...
Mike