Deleting career fields in and of itself is not a problem with technology, but when it's like the eye of sauron scouring workplaces and snapping jobs away (pardon the mixed universes), it starts to become a little alarming.

University graduates are often considered min-bar for white-collar work hiring, so if it takes 4 years to train someone, how are people supposed to decide on a career path when it takes less time than that to completely alter the workplace?

My daughter is entering her first year of nursing, a career path that she is greatly looking towards. Who says in 3 years that robotics companies don't actually deliver on their promises and completely up-end the care industry? While I think that unlikely, it's not like people aren't trying to automate nurses away.

Travel agents come to mind for that. Bill Gates saw the future with and funded Expedia.com