...would they still choose socialism?
Liking or not, [MENTION=7]Totenkindly[/MENTION] did argued well.
However, there are some other issues.
Liking or not, money is some sort of an abstraction that we take it very seriously, less or more depending on your personal preferences.
What you are saying seems simply to be a question of: "what if everyone received a proper retirement on their bank accounts?" Liking or not, its pretty similar.
What is expected to happen in market capitalism is perhaps some sort of inflation that is going to make everyone no longer independently again - probably, not 100% surely.
Resourceful speaking, it would be required AI to do the basic jobs - as [MENTION=19700]Doctor Anaximander[/MENTION] and [MENTION=4347]Virtual ghost[/MENTION] said. If that doesn't happen, then essential resources of so-called boring yet necessary jobs would start to be scare which would generate a resource crisis. Supposing the AI does that - and we are close to achieving that each day, actually. It is sad that this inefficient system we live prefer to increase unemployment rather than to decrease working hours, so things are taking a crisis route due to inefficiency and greediness taking the unemployment route rather than the decreasing hours route (more unemployment = less wage/hour = less costs that usually don't go fully to the final product price = more profit), especially because we live on a - yup, bringing typology bit - J society that actually prefers to have a bunch of people working hard and others doing nothing at all so they can be proud of themselves and call the others lazy rather than people in general working not much but everybody working a decent bit - classic mismanagement of resources.
Well, getting back, supposing the AI does such a thing, I think that it depends a lot on what people wants on that system, but I think that the socialism ideas has an underlying and good intention idea to give absolute everyone a decent life, and, if an alternative system already achieves that, socialism would be less appealing. Capitalism per se, specially neoliberalism, does not really have that premise - the pseudo-meritocratic one is pretty much the opposite, just throw people on poverty for random reasons and then create a loop argument where poor->your fault->poor - and if people sank into an horrible life that even includes people committing suicide due to having an horrible time with unemployment, debt, exploitation, lack of work ethics, etc... capitalism doesn't really care. And in the end we got back to the "universal income" thing because that is actually sort of what you are asking ("if everyone had a quite decent UBI, would people prefer socialism?") and my answer is: I think it depends a lot on the people, I do believe that some people would like to live in an approximately equality system (but I think very few would want a 100% equal) while others might want to live on a more unequal one. I would even risking saying it really ups to people, their thoughts, their personalities and their culture context as well (the culture will tend to create inertia).
Perhaps one of the most basic premises of socialism is actually to give everyone a decent life, and if that is achieved by other system, it will automatically becomes less persuasive and there is one less reason to go to it.