Earlier quoted context omitted.
>The oldest profession is not going to be replaced with robots until those robots are mistakable for humans, as in Blade Runner. I am not so sure about this. When you consider what is the current alternative to the oldest profession then I think robots will achieve a high penetration.
It will be an uncanny valley. Better reading 50 shades of gray than playing with a Boston Dynamic doll. It would surely sell though, people are actually buying expensive dolls, I'm sure some of them would be tempted by a hugdroid.
50 shades is an interesting example of this effect. Women supposedly weren’t interested in this area (not my personal experience), but get enough social acceptance and even an appallingly badly written book becomes a popular success.
Sex robots will face the same “icky” effect, but all it will take for them to become popular is social acceptance via a breakout event once they become good enough.