The thing about the system being proposed is that why would society spend resources on a population that isn't being productive; they're just going to be a useless burden to the elite plus why would they do anything if they can have their basic needs met without effort?
Some people are passionate and genuinely want to save other peoples lives or protect them. Here's the truth, people have passions, but they can never pursue them because the world is set up so that you have to pursue money. Your parents push you in that direction, your teachers push you in that direction (depends on the teacher). I remember my art teacher being impressed by my earlier drawing skills and telling me that she wanted me to stick to art because she see's a lot of potential, but I didn't because "you have to make money".
Ironically I might have a job in some art field right now if I had stuck to it.
I always liked music and art, but I went into fields related to computers because I felt like I could land me a stable job, I did it for "security" in this capitalist society. But ironically I don't even have a job right now. The illusion of "job security" is what I was sold, the truth is no such thing exists, the only security is owning your own "means of production" (having a business or passive income stream).
Poverty was also another thing hanging over my head that pushed me to go with "the safer choice". If UBI (Universal Basic Income) was already part of the system, I would have went into art and music, and I would have excelled in those fields (without a doubt, I know I have talent in both).
I know people who genuinely wanted to be doctors because they wanted to save peoples lives (not sure if they are one right now), I'm sure there are people who genuinely want to be a police officer because they want to protect their community and the people they care about, etc, etc, etc.
What we have now is a world where people just work out of necessity and not because of passion, and because of that, people half ass their job, corruption is rampant because if you are basically forced to do something "for the money" anyways, you might as well make some extra money on the side to look the other way.
Not only that, people who are forced to work (slave away their lives) in this manner feel no "allegiance" or "commitment" towards society, and so they don't care about "the greater good" or society in any way. Capitalism creates an "every man for himself" culture, and it only SEEMS sustainable, but this is short term.
In the long term as things progress, society is going to collapse.
If you create a society where people do the things they genuinely enjoy doing, before they become "bitter" about life, then you'll have an all round better society.
But it's too late for someone like me to have that mindset, I see society as my enemy, I feel no allegiance or commitment to society, I don't care about "the greater good", I don't care about "contributing to society", etc. I'm only out for myself, and that's because every opportunity that should have been there so that I could "feel like a valued member of society" was taken away.
Also, do you know how much crime would go down if the average person knew they have a set amount of money coming in each month. A lot of people turn to crime for "good reasons", not every criminal is just trying to have gold chains and expensive cars. Even the ones who ended up like that started off wanting to provide for their family.
I'm not saying that capitalism is okay because it's exploitative while the elites get to make the most money without any effort or providing value, but just questioning if society is willing to provide to the masses if they are no longer required to work even if robots can generate enough resources to support everyone (automated vertical farms, renewable electricity, etc.)
I don't think you read my post, society
WON'T HAVE A CHOICE because people en masse will turn to crime and civil unrest, the elites won't even be safe.
If nobody needs to work to earn money then will women still be willing to become prostitutes?
Ironically yes, women are vain and they like buying a lot of pointless expensive shit. Most strippers and prostitutes are broke despite making a lot of money, because they spend their money frivolously, and therefore they have to keep working to maintain their lifestyle.
What about money and trade? Will people still trade goods and services? Would sex bots be free or would people have to buy one?
People would still have to but products. The UBI would just be supplementary. You'd still have to get a job and work if you wanted more things out of life, but the UBI would make it so that people pursued their passions instead of pursuing "job security" because you don't want to starve.