I think there's a large gap between what teenagers think and care about, and what they'll show to adults + how they express what they think.
Sometimes I feel most people's image of a teenager anxious about their future is some hippy kid with a "save the earth" sign in front of a Starbucks. I think it's probably more a very irritable and groaning kid who's pissed at adults but just doesn't see what they could even do so just spend their time hanging out with their other distressed friends.