And how does that fit with the fact that according to DM's own statement, each path will be independent and you can only go through what you like? For example, I don't like the Prostitution path, but I like Shiny Hole. And, it turns out that now that I've gone through the lion's share of SH content without any problems, not allowing Monica to prostitute herself, suddenly it turns out that I can't progress any further because Monica doesn't know some red-haired whore standing on the corner.
In the end, you can always just add a small quest, such as this "meet the girls who work for Mummy"... (if the plot is important that Monica knows this whore by sight)...But because of one quest to go through a whole storyline with prostitution - an occupation not for everyone. (imo)