Youth culture seems dead.
I remember being a teen and early-20 in the 90s-2000s and there were things like a hippie festival circuit, raves, goth culture, club culture, and so on.
I keep hoping I'm just old and don't see it, but I remember back then it would seep out and get covered by the media and get chatted about on the nascent Internet. I see nothing like it today. Sure there are concerts and IDM shows and the like, but they don't have a mystique. It's just entertainment, not a coming of age subculture. Subculture is dead.
I think this is a factor from personal experience. If I hadn't gotten into the rave/club culture in the late 90s I'd probably be dead from suicide.
These cultures were where kids that did not exactly fit the popular mold would be able to go out, make friends, have experiences, and have a sense of belonging. I still miss it to this day.