Hookers, escorts, and/or prostitutes need pimps because the pimp makes sure that these girls or guys are getting paid. If your a hooker and you get ripped off by some guy, what are you gonna do? Get into a fight? That would involve putting your face or your body in the way of physical harm. Your body and face are what makes the money in the first place. So, instead you go to your pimp and explain that some prick didn't pay for the services. It's the pimp's job to find that guy and teach him a lesson, also to get the money. The pimp also handles the business end, so he decides where the ladies can go to do their thing and with who. The pimp lets these ladies know that some guys look peculiar and he advises them. Pimps are actually pretty handy to have.