Quite simply personal experience.
Despite your ability to freely choose escorting as vocation, for many if not most UK girls involved in the sex industry there's a heck of a high correlation between prostitution and drug abuse.
This old study is interesting. It discusses streetwalkers in Preston a few years back, but the comments are still valid now and equally apply to girls using other modes of sex work
External Link/Members Only
And back to personal experience. Over the years I've had several girls call me begging for cash. All were after a fix
You sir are shopping I the wrong store
I'm fully aware there is a drug dependency issue in this country, I'm not so sure the correlation is that highly skewed towards sex workers, I'm sure just as many city types have coke habits its just they can afford to finance them.
We need to remind ourselves when reading 'studies' like those you so freely throw about to justify your misogynistic viewpoint that they didn't do the study to make this industry seem like a happy place.
They chose street walkers, run down areas, poorer areas of the county etc so not quite so black and white as the results always seem.
As for your punting habits, give you head a wobble hun