This is a particularly relevant topic as we race towards the singularity and all of the various Sci-fi tropes are soon becoming real. Convincing android sex workers are an inevitability at this point.

EDIT:

Top comment as of my writing:

I mean, the obvious solution is superhuman sexbots, right? People aren’t breeding anyways, they don’t really seem to like each other much for relationships qua relationships given “divorces and mutually unhappy marriage” rates, at least when given options and interesting Western lives.

My take on the divorce rate, is that people no longer know how to talk to each other in the context of a relationship. Instead of actually substantively talking to each other, so many accept a substitute. By this, I mean shutting down one's partner or letting one's self be shut down. This is also connected to an erosion in society's teaching people about accountability.

My partner and I are accountable to each other, and we know how to actually talk about everything, including uncomfortable things. From what I see, we are an uncommon case.