I think you'll find that there's still quite a crowd that would. UBI for sure would help curb the those on the street scene just trying to pay to survive. But there's a huge group of only fans models that do things not to survive, but rather to become ultra wealthy

Let's take the opposite approach: look at all the top echelons of all past societies, assume that this subset of people was the most free to live in any way that they so desired, then count how many of these people did sex work. I think that we can safely assume that the amount of people that willingly engage in sex work is zero.

Add universal heath care including addiction treatment. This might or might not include de-penalization of addiction, depending on the jurisdiction. Breakdown this more to make clear what I mean. Besides the obvious complementarity between UBI and universal health care, people get to do this because they are also addicted, not just poor. Some are also manipulated by means of being addicted. The current approach that punishes the addicted instead of treating them only makes this worse. Countries that have made addiction a healthcare issue rather than a criminal one have seen results.

A very interesting take. I like that we're questioning the root cause here.