Sex robots are far more ethical and accessible than prostitution (of course it would have to be some years from now most likely).
As a technologist I feel obligated to point out that this is far more accessible than most people realize. When people think of sex robots they imagine blowup dolls and the evolution of that. There’s certainly sex androids and progress is being made in that avenue, however it is still probably like fucking a dead body for most people. The uncanny valley is too large.
However, if you mix VR with deep fakes and advanced dildonics you could create a very realistic and satisfying experience with current technology. Just sayin’…
If anybody is interested in getting an idea how this would look like I can recommend “The Hierachies” by Ros Anderson. It’s written from the perspective of a sex droid.
Edit: I just reliezed this thread is so old it is a toddler by now. No idea why this would be in my hot recommendations (besides it thematically fitting the term).