A robot bartender will cost lot more than a human one. Makes no economic sense
It depends.
Robots you pay for once. Humans you pay for continuously. Once you buy the robot then it doesn't get tired, it doesn't ask for a salary or sleep.
Repair and maintenance cost of robot are expensive. You could argue health care cost is expensive also.
Hence, you have all the corporation outsourcing their entire production to 3rd world country where they don't have to pay for health care nor pay for polluting the environment.