TIL: Today I Learned...
Related factors to that "buyer's remorse" you mentioned, Guido, would also include certain customers ("johns") catching any number of STD's.
Which is why in certain cities and states like Nevada that have legalized prostitution or in foreign countries, highly-regulated, state-mandated check-ups, STD tests for prostitutes, high-priced escorts is such an absolute necessity it would be highly immoral if they didn't.