Just legalize it already! It's been proven time and time again across many countries around the world that legalizing and regulating prostitution creates a safer environment for the girls AND the customers.
Women are having sex with men whom they otherwise wouldn't have sex with -- we should be removing the need for sex work rather than accommodating it. Sex "for survival," child prostitution, sex trafficking -- none of these go away when the stigma and illegality are removed and if anything it gets worse because clients just automatically assume their sexual partner isn't (for example) a victim of sex trafficking.