I'm double replying to you since the replies are disparate subthreads. This is the necessary step so the robots who can turn wrenches know how to turn them. Those are near useless without perfect automated models.

Anything like this willl have trouble getting adopted since you'd need these to work with imperfect humans, which becomes way harder. You could bankroll a whole team of subcontractors (e.g. all trades) using that, but you would have one big liability.

The upper end of the complexity is similar to EDA in difficulty, imo. Complete with "use other layers for routing" problems.

I feel safer here than in programming. The senior guys won't be automated out any time soon, but I worry for Indian drafting firms without trade knowledge; the handholding I give them might go to an LLM soon.

It is definitely not. Entry pay is 60k and the senior guys I know make about 200k in HCoL areas. A few wear white dress shirts every day.