We've needed "jobs" to support ourselves since we descended from the trees. Actually before that too. "Society" came about
because we invented tools and techniques to make our jobs easier so people could spend more time on different things. "AI" is some more steps down that same path.
> In the next era we'll probably live like aristocrats, but instead of the work being done by servants, it'll be done by AI.
Not in the way you imagine. We live like aristocrats today. We live in vast mansions that have hot running water, electricity, refrigeration, heating and cooling, lighting, we have servants bring us gluttonous feasts whenever we like, we careen around in our horseless carriages and flying machines. We laze around many hours of the day wasting time on frivolities like watching TV, playing computer games, reading books, drinking and taking drugs, etc. We have armies of doctors and security at our disposal if we should break a leg or even get a sniffle.
So we live better than kings did 200 years ago.
Life might get better for the average commoner in another 200 years. There will still be the haves and have nots though. People with a lot of wealth won't want to share it with others, and people with less will be envious of those with more, that's the constant in the human condition.
Nobody with the robots is going to give money to a bunch of hippies to laze around. If they want a piece of it they'll have to either work to create it themselves or to take it by force. Either way it won't come for free.