I’m surprised you worry about them. I have hired many, and a lot just move on. Some settle down, some know their time is up, some have kids with a wife, some get jobs in other fields, some can’t take the mental strain of porn/escorting (especially if they are straight), and they just don’t want to remember any part of this chapter of their life. Many just want to close this chapter of their life for whatever reason.
I know models who block other models or companies from contacting them anymore because they are just done with porn and want nothing to do with it anymore. I know of one old old Bel Ami model who’s in other fields of work now (or professional work) and you wouldn’t even recognize him. Some consider this part of their life embarrassing now, that a stupid 18 year old did for a little money.
Certainly they’re not going to continue to keep in touch with some John they’ve met a few times.