It depends what our economic system looks like. Ideally we will have an economic system where no one has to work.

But if people have to work, anything requiring a physical body will come down to a cost comparison between a robot capable of doing that specific job and a human.

People assume a robot will always win but in some cases a human may be cheaper, especially if minimum wage drops to keep people employed. Ai's could drive down the cost of food production so human fuel costs is lower, and we could all be living in the streets.

If we don't have UBI, humans may be willing to do riskier jobs with a higher chance of death. So if a human is, for example willing to work for 1$ a day, live on rice that's very cheaply produce by Ai and robots, and take a job with a 20% annual chance of death, that might be much cheaper than a robot that could do the same thing, in some cases.

Keep in mind, all desk jobs will be automated. I'm not talking about desk jobs. Robots will also be very abundant so this only applies to limited jobs requiring the human form factor.

Again, we don't want people to have to work. This is a nightmare scenario, we want to avoid.