Yup.
I went through the local CC's manual machine operator program, as that was recommended.
Industry wants button pushers. Once in shops I never touched a manual machine until I got on nights. At night the tool crib was closed, so we made our jigs, modified tooling, altered clamps, etc.
Having to explain zero and draw number lines is something manufacturers get tired of I'd imagine.
We had a Smithy Granite at the house here that we stumbled into. You could easily hold anything to 0.001" but you could NOT hog off metal like a Bridgeport or a Bend. Makes me wonder about the people who say Smithys are crap and no good, "don't hold tolerances".
Jon