From my experience, half of the EE girls don't even understand what bareback, rimjob, etc is...they just tick all the boxes as their pimps tell them. I have asked them, and they seem pretty horrified. I knew one, who had bareback listed, I texted her to ask, and she sais she even gives blowies with a condom.
As of the UK prossies, I have no idea who in their right mind would do bareback. But some clearly do.