That's an interesting question. Of course, it depends on the model or the performer.
My opinions are based on one ex-model's experiences. I really don't think that you unring a bell. You go into the machine, and if you decide to exit, you come out modified, different, changed. Maybe there's a so-called recovery mode. I think most of all it's just a sense of relief. It's not an industry for everyone. That's an understatement.
In general, there's a huge difference between a screen performer and an escort. A sceen performer gets to keep her private life, to turn the light off when she leaves the room. Physically.
An escort can on.y turn off the light switch in her head to separate her work from her private life.
So, it depends on the person, of course. It's a great question. Sadly, though, it is an issue of varying degrees and it's part of the human condition.
In my boat I'd like to say this. Don't judge the person or her work. That's her place to do that, not my place or anyone's place. The person working gets to judge for herself and the preaching and moralizing and sermonizing and lecturing and sanctimony and paternalism and labeling, what right do we have to opine? None.
Observe? Care? Help, if asked? Yes. that's what I believe.