I have had the opposite observation. Millenials and older Gen Z have extremely pessimistic takes on the future. Our childhoods were some of the most materially comfortable in human history, and everything in comparison is downhill from there.

But high schoolers I know today seem more even keeled about things. They are graduating into a world where fast food jobs start at $17, no one needs to go to college if they don't want to, and they are accustomed to a world where everything is temporary and digital.

I think the strongest evidence of this is the sharp decline in military recruitment.