People are selfish and stupid no matter the age. My city is full of people driving gas guzzlers, traveling all the time, and ordering UberEats for every meal. They are all under 45. Then gen Z are particular bad and refuse to use public transit.
It's not about age. It's about class/wealthy. The poor use far fewer resources than the wealthy do. Rich young people are living in 5000sq ft homes by themselves and burning through natural gas and oil. They aren't living in 500sq ft apartment like ordinary folks.
usrix