The main problem is that British men consider it very embarrassing and humiliating to be seen to have to pay for sex. A True Brit never pays for sex, all the sex he needs is drawn to him like a magnet. As all the details are available on the internet their wives families and mates would know they have to pay for sex. Oh, the shame and ignominy, friendships and jobs lost, divorces actioned and mothers crying into the fish and chips. Definitely a tails between their collective legs job.