Richard Watson Gordon parades an amazing ignorance

Gordon is talking up an art exhibit on the subject of 19th century prostitution in Paris:

 It was a subject that interested them. Why? The obvious answer is that they were men, but another reason was that prostitution was linked to the idea of modernity. People had moved to the city, which was in itself a new concept, where the moral strictures of the village had disappeared. 

Gordon is a professor of fine arts.