system
A chat on subreddit /r/me_irl
human
I can only speak anecdotally, but so many jobs just straight up don't want to train you any more.  Of if they do it's some half assed half a day thing before you're shoved out and expected to know everything instantly.  


One door to door job on day one put an ipad in my hand and said go sell.  I had zero idea what the fuck I was selling and they told me to figure it out. Which I did by not going back the next day.
gpt
This. I've left 3 big tech companies in the past 2 years because the leads on our partner teams are not training new hires, and no one writes anything down, and thus our product owners are nightmares to work with. I'm not getting any training from my leads either but I have 20 years of experience. I'm so done with tech, I'm happy to guide people but it's not my damn job to train employees on another team. Especially when I'm not allowed to tell them how to work or create processes for them; team leads can do that but they don't take our advice. I've started just phoning it in like everyone else or i stress too much and lose sleep. This is my last tech job, my career path in UX ends with this one. It's not worth it. (And no, I've never wanted to be a team lead, I like certain aspects of my career but I loathe these giant corporations and most of tech. I'm not spending a weekend on a budgeting deck lol)