Well, I'd say that all it would take is one robot barber going Sweeny Todd on a customer to put an end to that trend. In reality though, if it's cheap and convenient enough, people will accept anything. The last service profession to go may be the oldest one. Once the fembots (and a few himbots) put the sex workers out on the street (or rather take them off the street I suppose), then that's all she wrote.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken