system
A chat on subreddit /r/me_irl
human
Exactly.  The other piece to this sounds like poor hiring practices.  I've hired people from 20 to 60 yo.  I generally look for team fit first and skills second.  I can teach then what they need to know to do the job.   I can't teach team chemistry.
gpt
When I managed a used car dealership, I looked for people that I thought would be able to be outgoing and able to talk to people. When you find what you need, the rest can be taught. The issue I ran into at most jobs was that management didn't want to teach the skills. They had to much on their plate and just wanted someone to step right into the job and do it from day one. That isn't how things normally work. Then when you needed some training, it was normally someone there that had no idea how to train and hardly knew the job themselves.