For some it mightn't be as much of an age thing as a 'things often associated with a certain age' thing.

I'm not a fan of those teens and young adults (some are older than me) who don't show the respect for people and people's belongings like most people do and most of my mates (most of them are at least a few years older than me) feel the same way. Think things like vandalism (particularly if the owner hasn't done anything to them personally), larceny for the hell of it, treating the road like a playground, getting publically drunk to the point where they're a menace to others and hanging around public places in anti-social groups (if they keep to themselves there's no problem, I'm strictly talking those that do make problems for others).

Some of these kids have a problem with us too, particularly when we try and defend our property from them - they just don't understand that people often worked hard for what they own, especially homes, small businesses etc. And then some of them resent the rewards of our labor. Finer clothes, food, drinks, the ability to go to nice places when we want, things like that. And this is despite the fact that most of them probably could get a job and start building their way towards having their own stuff if they wanted to. Instead they scream for Anarchy and take their frustration out on those who did make it. The ironic part there is they're also often quickest to play the victim when someone targets their property.

This frustates one of my oldest friends (in years of age rather than years of friendship, he's in his mid 40s). There've been a few times when we've had a few beers at the pub talking about current happenings and he'll look all gloomy and comment on how these 'stupid kids are pissing away their lives'. And I agree with those sentiments completely. Note it's nothing against youths in general, just the ones acting self-destructively which often seems to be associated with teens/young adults moreso than any other age.