That is a sort of a nightmare. On demand sex work for extremely low cost with 0 risk of disease...
We are slowly stripping everyone of the will to build meaningful lives by fulfilling all wants with soulless instant gratification. No perfection of AI/sex work or whatever can match actual intimacy with someone.
That is at the root of most of our current societal ills I believe. Bad economy, Bad job market, etc. are all a smokescreen over the fact that people can escape their problems. You can live a numb half-life and avoid any crisis that might trigger real change.
If a bad economic outlook was all it took to wipe out the birth rate we would never have survived the great depression or other 10,000 hard times we have endured as a species.