It's does seem rather sci-fi to send a robot in your place or to embody a robot that is at a location where regular people are also located. I can more easily accept the idea of a telepresence robot in an office, but even that is rather uncanny.
It will be interesting to see if this tech really goes mainstream over the coming decades -- I predict it will.
Just an observation: a telepresence robot at a restaurant would not do much good in that the it cannot eat for you. But robotic servers -- that's entirely feasible.