Yep - if the woman could expect a beating if she tells the John she is forced into it, what will she likely do? If the John can not know if the woman is being coerced - what should he assume?
And some men do not care, they are just masturbating using a warm body.
Here is a true story of what happened to a friend of mine. This girl who was 15 at the time was waiting for a few friends in a public place when she was nabbed by a pimp who held her, raped her and beat her for 3 days until she agreed to work for him. She was then held naked in a hotel room where Johns were brought in. After having told 3 johns that she was being held against her will, the third one did not carry out the deed, and grabbed her, took his coat, and put it over her naked body and helped her out the back stairwell of the hotel so she could escape. The two men before had sex with her, and one of the two had said that he’d already paid, so he wasn’t going to leave without having sex with her.
After escaping out the fire escape of the hotel - running to a convenience store where the clerk called the police for her, she endured police who doubted her story, and did little to track down the pimp, despite the pimps name being known to police because this girl had previously ran away from home.
It wasn’t until another girl was kidnapped and raped by the same pimp that any charges were laid, but only in the case of the other girl because her parents were more well off, and put pressure on the police. As for my friend, she never saw justice for her case.
This was in 1987, and according to people I know who either advocate or even work in the sex trade, the only thing different now - is the ads in the back of newspapers and street workers have been mainly replaced by online ads.
As for strippers, I’ve met ones on they way up & out, and ones on the way down. Stripping is not prostitution.