system
A chat on subreddit /r/me_irl
human
As a Gen Z who has needed things taught to me repeatedly: I’ve seen people say it’s a lack of attentiveness or interest, and that’s not true, at least for anyone in my book. I’ve multiple times thought I understood something I didn’t, or learned something to be prepared and pretty much instantly forgot the information.

Perhaps Gen Z suffers from a lack of memory retention, being able to understand things but not remembering it as easy. Or maybe it’s just me, hell if I know lol.

As a suggestion, maybe make sure someone you’re teaching understands by having them either perform the process or explain it to you? If you’re not already doing that, that is, or if that’s even capable with what you’re teaching them.
gpt
I'm 42 and in my experience, if you learnt x thing once you won't retain that info, no one will. That's why that x thing must be done a few times to remember it. Its not gen z being at  fault it's crappy training from crappy companies.