[cripplecreek]

Can they all be retrained as bot maintenance?

I think you would be surprised at how many will and contrary to popular belief, they won't need college educations to do it.

I'm a high school dropout and I learned to program, operate, and maintain painting robots while on the job. Its how I became the foreman on that job.

[Born to Conserve]

Robot programming and maintenance will be automated too.

Robots will be so modular, mass produced, and cheap, that repairing one of them would be as silly as repairing a coffee maker.