Going back to 'are all SWs crazed druggies' theme, I pointed out on another thread that those are the most visible ones, and also the ones that go to the drop-in centres. Housewives and students, who often do (or did) it one day a week, would dress normally and stay in the edge of the RLD quite inconspicuously. When I would ask one or two of the decent, clearly not drug-addled but respectable and reasonably intelligent SWs why they did it rather than work in a parlour or for an agency, the main answer was always the same: they get to choose clients. While in practice this might neither be very many or that safe, it does indicate a degree of control that is lacking in other situations. A street girl prostitute probably has a higher risk of rape or mugging than a parlour worker or indie, though none are immune. But only the SW can turn the other way when a client she doesn't like the look of approaches her.
Perhaps it's more suited to the WG with excellent instincts and who knows when to refuse the dodgy looking cunt.