cost of living, housing, etc keeps increasing yet wages are mostly stagnant. as neon said, the middle class lifestyle is becoming increasingly more and more unaffordable for the average person
breakdown in the sense of group identity for the general public. there arent really any strong society expectations for being a man, woman, parent, heterosexual, christian, etc. not saying this is a bad thing but i can tell having to create your own identity stresses a lot of ppl out
increased focus on work - across the board, you are expected to work more hours, integrate work into your life more, & have some deep psychological connection to your job (it is your passion, not just a paycheck)
so you put this all together & you have a lot of young people struggling for direction & meaning and all society does for them is overworks them and then rips them off for working hard