Why are women uncomfortable with prostitution but are rather ok with pornography?

Of all the women I personally surveyed, most of them are relatively accepting of pornography but conversely a lot are still uncomfortable with prostitution. I believe the main reason is that they have been conditioned by society to accept the first and reject or disapprove of the latter. The idea that prostitution involves the real thing while pornography is just watching is another reason but I don't think it's enough to explain this difference.
Pornography is a huge and legal source of revenues unlike prostitution which is still either illegal or not fully regulated in most places so women have been pressured for years to accept the widespread circulation of pornographic material as a natural outlet of male sexuality unlike prostitution which they still view as a form of degeneration. I also need to specify that both pornography and prostitution are potentially at risk of involving trafficking and exploitation of sex workers so you can't base your moral judgement on that.