A prossies sole aim is to earn cash for having sex. Not to date her customers. Granted. Maybe a slightly controversial opinion here, But if you're a single man, you can absolutely speak to them outside of their working environment if they approach you and that's what you're into. They are people after all, some of them are naturally good people persons, some might have things in common with your interests. Obviously most just want you in and out after you've handed over the cash. Obviously it takes the fun out of punting for most which is understandable.
I have spoken to a couple outside of their work which has involved in casual "dates" with sex etc..one I was unaware they were on aw as I just matched them on tinder (of all places to find a wg) and recognised her tattoo upon looking on aw a few weeks later. The other one I booked and they just randomly asked me if I wanted a smoke and "chill" as one could apparently smell green on me and we lived close and had some stuff in common...those probably didn't last longer than a few month (probs til they get bored of not being paid lol) but Nothing fluffy or EAS worthy here IMO, anyone else would do the same IF perhaps young, single and like the idea of fucking an escort on a casual, but safe basis like myself.
Obviously lots of these WGs are just being friendly and it is part of the job for some. And correct most have no interest in fucking a punter for free, usually. But doesn't mean to say this thing doesn't happen.
The only ones that seem to have a problem with these kind of arrangements from what I've observed on here (fair enough if you do I'm not slating each to their own), that are quick to slate you meeting a whore outside of punting with phrases like whiteknight or fluffy etc; are usually the more seasoned "mature" Punters that have been in the game for yearssss. I'm speculating here, but perhaps they're just not attractive to these women In general. All about physical attraction for the small percentage of WGs that would date their clients (albeit fucking rare absolutely).
Again I'm speculating, maybe they're just happily or unhappily married/in a relationship men that just see this hobby as strictly business which is safer but just as satisfying. Maybe they've been hurt by civvies or wgs in the past, who knows. Maybe they just have the opinion that someone that sleeps with hundreds of men A week aren't worth dating and I wouldn't blame them, definitely not. Some people are turned on by different things.
As I say don't blame anyone for just wanting to pay a prossie and leave but this is just in reference to what the OP is asking. Not saying I'm Brad Pitt far from it but each to their own if you think you can persue a FWB arrangement with a wg. It is very rare as people have already said, but it definitely happens just need to get lucky lol