If it's all about risk of pregnancy, what about women who have no risk of pregnancy eg post menopausal women, women who are already pregnant, those who cannot conceive because they have been sterilised or are infertile, women who have sex with women . Do they all see sex as a recreational activity in the same way as men do?
I'm talking about men as a group, and women as a group.
From the moment they can have sex, it is purely an enjoyable activity for men.
From the moment women can have sex (and not many women start having consensual sex before they get their first period), it comes with the risk of pregnancy.
Mankind and womankind do not come at the activity from an equal position. I don't see how anyone can deny this. Looking at the population level, bigger picture - sex is consequence-free for men, but carries serious risk for women.
Yes, of corse, there are individual women who are infertile (who generally won't know that until they're older and actively TTC), women who pass through the child-bearing decades and hit the menopause, etc, etc, etc.
But that doesn't negate the fact that the two sexes view the act of sex quite differently. Yes, of course women treat sex as a recreational activity now, in this day and age, but only when they've sorted their contraception out, and many will still have that bit of worry when their period is due.
And traditionally, of course, women have born the full brunt of the shame associated with pregnancy outside marriage, illegitimate children, being forced to give children up for adoption, Magdalene Laundrys, being ostracised from families, and all the rest. While the men got off Scott-free.
Men have none of that. Yes, your individual man does, because he loves you, and cares about you. But I'm talking about mankind in general.
Maybe I'm struggling to make the point in way that's clear. It must be fabulous to hit adolescence, discover sex, and not have to worry at all about what might happen to your body (and ultimately, your life) if you conceive a child...
I just think this fundamental difference, sadly, makes it very difficult to envisage a future where prostitution no longer exists...