Interesting question: is it cheaper to use a low-skill, uneducated workforce for low-skilled work, or a smaller but somewhat higher-skilled and educated workforce to maintain the mechanized workforce replacement machines, as well as the smaller set of workers to design and program the machines? It's usually easier to point a guy to a corner and tell him to sweep, than it is to program a machine to do it and to get politely out of the way when a customer walks by.

Who pays for those higher skilled workers?

Can you get enough of them?