No because they either have more respect for themselves
or they know they couldn’t bring themselves to get it on with every tom dick or harry that turned up,
regardless of how much money could be made
These days no girl has to turn to prostitution to survive,
(unless they are sadly forced or have out of control drug addictions, etc.)
As there is just too much help and support out there from benefits to help finding regular work,
housing the list goes on, so no real need to out of necessity.