The second step was the law the country passed at the beginning of May—the one that The Publica makes sound like a horrifying, dystopian mess. In fact, the measure had the support of the Belgian sex workers union...

But the law also explicitly protects the right to refuse specific customers, sex acts, etc.

It stipulates that "every sex worker has the right to refuse a client," that "every sex worker has the right to refuse a sexual act," and that "every sex worker has the right to interrupt a sexual act at any time." It also says that "any sex worker has the right to perform a sexual act in the manner they wish" and that "if there are dangers to the sex worker's safety, the sex worker may refuse to sit behind a window or advertise."...

"If a sex worker exercises the right to refuse more than ten times in a six-month period, the sex worker or the employer may seek the intervention of a governmental mediation service," according to UTSOPI. "That service will assess if there is anything wrong with the working conditions, if there is a problem in the employer-employee relationship. The service can also offer professional reorientation possibilities."

I don't trust Reason's reporting on this very much, and the article is full of libertarian junk. I'm curious as to why the sex workers' union supported this, though. Maybe they think the protections it includes are sufficient. Like 100 other things, it'll come down to how it's enforced.