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
I quit a job after the first day because I didn't receive any training at all and I was expected to know how to do everything already despite being told I was going to be trained.