They are already angry because they know they are living at a time when our heyday has passed; TV bombards them with images of a lifestyle that unfortunately is beyond the reach of most of them - and they know it. I don’t think many will ever be “on their own”; economically, they’re basically forced to live with others (either family or room-mates) because the McJobs available to them restrict them.
I’ve taken some flak for suggesting that parents start restricting TV and Internet access not just because of moral reasons but because kids are going to be very frustrated when they graduate and there is just no way to have the lifestyle depicted for ~80% of them and have any sort of meaningful social/spiritual/family life.
There is absolutely no point in telling an eager-beaver teenager “shoot for the moon so even if you miss you land among the stars” only to have him hit 21 and realize his bow just doesn’t shoot that far, then become easy prey for the first person/group (likely socialism) promising to come to his rescue.