I'll be damned if I let this post go to waste

Now, I'm going to use German statistics for this, I hope you don't mind.
Teen crimes rates

Red bar are children, blue adolescent, yellow young adults. As you can see, those numbers are either falling or constant.
Teen gang rates
Don't know about that (The information is buried in a 478 page pdf.). Teen criminality, however, went down. (source (german pdf):
http://www.bka.de/pks/pks2006/download/pks-jb_2006_bka.pdf )
Teen sexual activity
Teen pregnancy
I'm lumping those together, since you can't get the second without the first. No pretty graph here, I'm afraid. Anyway, the federal statistics office (Statistisches Bundesamt) concluded that the number of pregnancies is declining. In 2004, 8.3 of 1000 teenagers were pregnant. In 2005, 7.9 out of 1000. This trend continues unabated. (source:
http://www.destatis.de/jetspeed/portal/cms/ )
As for sexual activity, there is an increase. People start doing it earlier. I'm not quite sure what that signifies in this context, though. (source (pdf, in german):
http://www.bzga.de/pdf.php?id=ab480ab64494cb393c5c0cc3f8a1e181 )
Teen drug use
Seems to be going down wrt Alcohol, Tobacco, Cannabis (after an all-time high in 2004) (source (again, german pdf):
http://www.bzga.de/pdf.php?id=710c698ad2ec70e4f696aa4a68dec87b )
Teen depression and suicide rates
No reliable data for Teen depression (At least, none that I could find).
Suicide rate seems to be steady (I've looked at the data from 2007-2005, more recent data was unavailable.) (source:
http://www.destatis.de/jetspeed/portal/cms/ )
Teen emotional disorders
See above.
Teen educational grade reports
Teen dropout rates
Teen "discipline" rates in schools
Teen work rates (numbers of hours, length of time working at one, number of write ups, disciplines)
Teen graduation rates
Finding those will take more intelligence than my sleep-deprived brain is currently capable of producing. Will be added later.
I could go on and list more, but it's almost pointless. No one has really listed a good comparison for grading two generations against each other.
Even if you had all that data and compared it to another generation's youth you could STILL argue that it wasn't a complete picture of that set of youths because it didn't factor in things like technology rates, current economic and political climates, wars, social movements etc etc etc.
How large an age group do you select? 10-18? 19? 20? 13? Do you track the rates of those kids along their youth or do you take a snapshot at a certain point in time?
Pithy summary: You can't grade a generation's youth with a quick value or letter grade. For guys who sat there and said "every generation says the current youth are 'worse' and they're wrong", they're completely ignoring that their generation will probably be saying it about the next and all in all it doesn't matter because you can't prove it anyways.
I'm not saying that. I plan on acknowledging the fact that the next generation will be different, maybe even incomprehensible. That isn't neccessarily worse.