20-30 years? Anything that requires a license in the blue collar trades is a good place to start. I'd say "handyman" but people will have AR to help them do stuff to their homes. They won't have the specialized equipment to do many repairs, and johhnybot might not be able to recommend they mess with electricity, for example. edit: and they have unions that might fight for human workers rights that could take a long time to change, even with UBI, because surely working on top of that financial assistance is the way to move up, and I don't see that notion going away. Why the hell would any government want to work towards have an overpopulated mass of people that do nothing?