For most women, waxing their entire bikini areas or more blatantly, their extremely adamant bushes, is difficult to do on your own; which is why professional crotch waxing was born as a career for (mainly) women who would see more bare vaginal folds than any man ever had. This is fine as a profession. It's great money and the shock of seeing so many vaginas throughout the day does fade over time. They all start looking the same.
My complaints are the women who think it is okay to not shower before they come in to the salon to be waxed. The smell of a 3 day old twat will bring you quite literally to your knees, but it's important to maintain professionalism and not gag. These are also the women who will venture to get a waxing when they're ripe with STDS.
A little story: A friend of mine was working late at the salon one evening when a woman came in and wanted a full Brazilian, a.k.a. She wanted ALL the hair down there eliminated. My friend was happy to oblige, a customer is a customer and the lady appeared clean enough until she took off her pants and spread her legs. From within came a horrific stench of spoiled milk and legions of Herpes. My dear, very tolerant friend, told the woman to go home and take her Valtrex and never to try coming in for a wax-job during an outbreak again. The worst part? The woman was offended. Not surprising but definitely very rude.
It is not the job of the waxer to clean your coochy for you and you should have more than enough respect for anyone going downtown. Think of it as an experience where you want the person to be familiar and pleasant with your lady parts; not violently ripping wax strips off with the objective to just get away from the unwashed odor. If you have an STD or an infection, PLEASE show a little consideration. Wait for everything to clear up. A clean vagina makes for a happy waxer.