Interesting topic. As we approach human-level AI (if/when we do) it stands to reason that at some point AIs will outcompete (unmodified) human workers in every area and human work will become obsolete. What then? There are two concerns we should keep separate. The first one is how the standard of living of the average person will be impacted when it's not longer possible to "earn a living" as a worker, whether we should be preparing for that individually and as a society, what to do about it if anything, etc. The second concern is, even assuming the material standard of living is actually improved, won't people get bored to death? Can humans survive and thrive, psychologically, without the ability to make themselves useful to others? What kind of society will that be? what kind of life? will it be worth living? Can something be done about that, and should we do it?
The first concern IMO has a pretty straightforward answer. A world of human-level AI workers would be incredibly wealthy in the aggregate. It would be like a society where everyone owns slaves, smart, hard-working slaves at that, without the moral implications or the risk of revolt (I mean, that's the assumption of this particular scenario). There's no particular reason to adopt any form of socialism or anything like that. The only big difference, economically speaking, from today's society, is that nearly all your income would be a product of your assests (land, robots, company stock, savings..), much like in pre-industrial societies. So, the assumption that you can get-by and prosper from an initial situation of having no assets or even being deep into debt would no longer hold. But that assumption, so frequent in modern society, is quite weird, anomalous and crazy if you think about it. Historically, nobody would consider themselves other than dirt-poor unless they owned enough assets (usually land) to sustain themselves and their families.
Regarding the second concern, that's more tricky. Some will be fine with a life of sheer leisure, others will keep themselves busy with competitions, contests, sports, games and cultural activities that may seem pointless from our perspective, but to them will feel almost like jobs. After a while, I think many will seek to trascend their human limitations when the technology becomes available, as the only hope to feel useful again. It's debatable whether catching up in that way will even be possible from a technical perspective. I'm afraid that a staggering number of people will be inclined to engage in destructive activities like crime and terrorism.
Some kind of Luddite counter-revolution may well be in the cards, although strictly speaking it's logically impossible to make yourself useful by breaking and burning actually useful stuff, that would be pretend-work, living a lie, and then why not just play games, call it a job and be done with it? But I'm sure others won't see it like that.
