You are exactly right. Who is going to take care of all these people as they age? (Huge problem in Japan right now. They are basically paying people to have kid

You are exactly right. Who is going to take care of all these people as they age? (Huge problem in Japan right now. They are basically paying people to have kids because they know they'll be needing population to fill that role). People taking care of other people is going to be harder to automate than shipping and logistics. But still there is going to be cost/wage differences between companions vs light nursing (shower, etc.) vs full nursing .... You can't pay a high school graduate the same as a CPRN, and they have different skills/applications. The middle class is based on a mostly unskilled workers making a great wage because they are producing things that people will pay even more for. Automation has killed that future dream and is rapidly killing what remains of it. I agree that it makes no sense to turn a welder into a mechanical engineer. The best we can do in the short term is turn them into robot mechanics but that is just buying time (although maybe a long time). Eventually, we have to re-evaluate what life is, can be or should be. I find this future fascinating and terrifying.