Some things you might not know:
Adult activity between consenting adults is legal in the UK.
It is legal to pay for sex in the UK, it is legal to work as a prostitute in the UK. Women who are prostitutes do report crimes to the police and are treated with respect by them. Successful prosecution do take place against men who attack and steal from women who work as prostitutes.
The language used in so many documentaries and publications might make you think otherwise.
There are a few laws that limit prostitution, it is illegal:
to solicit, to curb crawl in a vehicle, to run a brothel, to place adverts in phone boxes, to be a pimp.
Adult activity between consenting adults is legal - common sense prevails. Thank goodness.