I think is stereotype but a lot of escorts do it some more evident than other ( imagine you work ask you to sleep with 10 guys (or more) a day).
Nit long ago I make plans to meet with a hot girl, after reading some comments here I discovered she was a dope user, at first I was a bit worried but I did it. it was a great meeting, after a few minutes engaged by her great personality I forgot about the coke issue.