I worked in an office in Delhi which had one of those automatic Nescafe machines: place cup under spout, press button, horrible coffee/tea comes out.

There were two people employed, full time, to operate the machine. Boss-guy would ask for your order, worker-guy would operate the machine and would hand you your drink. They and the machine were in a little windowless supply cupboard niche, maybe 2 meters square, and boss-guy had a plastic lawn chair, while worker-guy did not.

And yes, they were both very unhappy if you attempted to operate the machine yourself.