"Few *want* to have sex with a string of random guys, risking pregnancy and disease, for money. Sure they may make decent money but plenty of that has to go to pimps...and even if they get to keep it all, few want to spread their legs for a revolving door of guys. "

In the published interviews with prostitutes, many women justify their behavior with the pay rate. That is, spreading your legs for big bucks is preferable to working at a coffee shop for minimum wage.