I can believe it. Sex work in general is fraught with various degrees of abuse. However, it's also clear that there is a large class of workers that's doing this work voluntarily, under no pressure (at least not beyond the pressures every employee in any field experiences); my comparison would apply to them.

I think you'll find that lots of people in non-sex-work, non-stigmatized, socially respected jobs feel like they were pressured into them and/or currently doing more of the work they are in than they'd like due to economic coercion.