I think I would also ad to the mix that young folk these days are incredibly overconfident and averse to criticism. A few years back they got a junior dev in here, and I was supposed to help him get on our stack, and ultimately mentor him.

This kid would not accept seniority, would constantly and publicly try to divert from the stack we worked with, he would not take any input on his work without actively fighting the process and will crowd the conversation at team meetings with never-ending Reddit-tier takes that contributed to nothing other than fill his ego.

In the end I managed to convince my boss to get him out, and he now works in Cyber, which will probably cause even more damage in the long run, but at least I can now say "not my problem".