Sorry surfer, once again, your logic is flawed.
Just because a person wouldn't want their child to work in a certain line of work does not mean that person is a bad person for using the services of said workers.
Who would WANT their daughter to work as an escort? Probably not a lot of people. But if I had a daughter, I also wouldn't want her to work as a janitor, garbage collector, cleaning lady or port-a-potty cleaner. Yet I do not believe that I am a bad person because I pay (directly or indirectly) all of the above people to perform those "dirty" jobs for me. I can't see any parent having those aspirations for their children. Of course every parent wants their children to grow up to be doctors, lawyers and accountants and every parent tries to give them the best opportunities they can, but the reality is, not everybody gets to be a brain surgeon in the real world.
Personally (and no offence to anyone who does this job), I could not STAND being a care aide in a hospital or nursing home: changing adult diapers, emptying catheters and colostomy bags, cleaning vomit, scraping feces from asses, washing peoples nether regions. I find that completely disgusting and would 100% prefer to "fuck old men" (as you so rudely put it) any day. In fact, you could not pay me enough to be a care aide. Yet I have all the admiration and respect in the world for someone who can do that job. Would I want to know that my daughter was scraping shit off old men's asses and cleaning their shrivelled penises all day long?

Hell no! But I sure would respect her right to make a grown-up decision about her line of work.