I'm 16 like quite a few folks in this thread and I've had enough of other people my age too. What I find to be the biggest problem is that the misbehaving kids are no longer content with just not caring themselves; they now seem to feel the need to screw everything up for everyone else. This usually comes in the form of being loud and obnoxious, and really really gets on my nerves. I really couldn't care less if you want to turn your life into a complete waste of time, but if you're going to try and ruin my chances just because you're an envious, attention seeking child, you can go to hell for all I'm concerned, and it's now getting where the girls are as bad or worse than boys, I can't count the amount of times I've been shoved aside by some stuck-up, arrogant fat cow who believes she's so good that it's not worth the effort of moving around me or politely asking me to move, but rather I should simply move out of her way or be moved, regardless of whether I even knew she was there.
It destroys all my confidence in the human race knowing there are people out there that will never think of even uttering the words "excuse me", "sorry, that was my fault" or "please".
Another problem is this group mentality that, for lack of a better word, chavs adopt so frequently. They all listen to the same ridiculous music, wear the same ridiculous clothing, have the same attitude of thinking they're better than everyone else, and worst of all, they all stick up for each other regardless of what actually happened.
Take this example, my friend who's 16 like myself has a brother who's about 11 or 12 or so. When some little sh*ts aged about 13 or 14 ganged up on him in school, rubbed mud in his face, and tried to get him on the floor in some mud, my friend told them in no uncertain terms to go and f*ck themselves. One of them squared up to them, despite being about a foot and a half shorter, and hit my friend, who then in self defense hit him back. Word got back to some school staff who had them both in an office; my friend explained what happened and was not punished, as you would expect. But it seems that some people don't think like that, saying as my friend was ambushed the next day by not one, but three 17 year olds, one of them being the person he hit's brother, with one person on each arm while the third attempted to beat him up. Luckily it was broken up before any real harm could be done, but it just shows how they think. He was given no opportunity to explain that he was only defending his younger brother, which is exactly what these people (who were likely only given half a story) were trying to do, and were they mentally competent, would probably understand that they aren't the only one's who stand up for siblings, that their siblings are little buggers who deserve what they get, and leave him alone. They're also incredibly fond of ganging up on people, which is the only reason they're perceived to be dangerous - on their own they younger ones don't dare to say or do anything.
I've even had 10 and 11 year old kids attempting to aggravate or attack me because they know that if I fight back, they can get their older siblings on me. If I had a younger brother like that, I'd tell him that it was his own damn fault.
Society may have always been violent, but todays younger people are definitely getting worse, and at a much younger age. I'm curious to see what these chavs are like when they get to about 40 or 50 though, will they still be blasting crap music on crap speakers at the back of a bus?