There is a natural feedback effect.
If there is no one to buy the products produced at automated factories, then the factories go out of business.
There is no point in having robots make things that no one buys.
There have always been short term dislocations, and that is the biggest problem, if change happens very fast, the dislocations are harsher. One sixth of the economy is now in medical care, and most of those jobs are hard to automate. Maybe it will climb to one third.
I do not know, but the more we try to control things, the more likely we are to make mistakes.
I do not like the idea of a guaranteed income. Maybe we could guarantee low paying, subsidized jobs, that everyone would like to get out of...
You allude to a growing need for the increase in the need for medical care; geriatric care will see a huge increase in employment. Who knows, perhaps factory products will become very cheap. Barring a cataclysm, things will get better.
I have never liked the idea of a guaranteed income either. I grew up when any able bodied young person who had at least average IQ could work hard and get somewhere but I see that things are vastly different for young people now. I used to think I knew the answer but now I am just waiting and watching.