It's a great shame when people condemn something and put their own definition to it with a mind that has obviously not experienced it.
I have not experienced a brothel so will not condem those who obviously have a greater knowledge than me of what happens in them, but I do feel they have a place in the world. There are people who, for various reasons, are not able to experience sexual encounters in a relationship and if there are people willing to sell such favours, whose right is it to challenge that?
I would of course condemn the illegal practice of forcing people into anything.