When I hear "retraining workers," I usually think of Charlie (of "And the Chocolate Factory" fame)'s dad losing his job screwing in toothpaste caps and coming back in the end as a technician for the machines that took his job.

That is the wrong way to approach this new shift.

There will simply be too many menial jobs made obsolete for blue collar workers to step up into supervision/technician roles.

Instead, they will have to find new kinds of jobs. The kinds of jobs that cannot be replaced by robots without getting stuck in the Uncanny Valley. Jobs like personal trainers, yoga instructors, physical/massage therapists, tattoo artists, hairdressers, and so on. Unless a robot can 100% mimic human form and action, these jobs aren't going anywhere - certainly not overseas.

I'm calling it here and now: as jobs are lost too quickly for people to retrain (or even want to adopt an entirely new skill set) we will see a new push for the legalization of prostitution. If nothing else, you can always sell your body by the half-hour, and no robot could ever truly replicate the closest of human touch.