Lack of AI in car mechanics makes sense, given how all the industrial AR headsets overpromise, over price, and IMO under-deliver on the "having a computer see for itself how to help with the work" front; but I'm mildly surprised it's not been useful for you in sysadmin.

In car mechanics you may not see it, but some of your clients may have diagnosed - and fixed - car issues by themselves using ChatGPT.

That was my case once or twice already - didn’t get to a mechanic whereas before I would need to at least call him and ask him what’s up.