A good-looking receptionist and the greeting lines are necessary in a reception scenario. And also, the same greeting lines are welcome by all the visitors or interviewers anytime. These motions make the human staff working like a simple machine, and most of them may feel bored.
This uniform way to express their feelings is probably the first step that people want to make humanoid service robots, so that robots can master the emotional state similar with human beings. They want to make a robot to express the feelings, to replace the human being like a robot. And it is possible to disturb the order of all kinds of motions and emotions, do some special actions, and more.
This may be the highest level of development of artificial intelligent robots in our lifetime, but the present artificial intelligence and robotics have much potential to develop. Maybe in next ten or twenty years, when we go to this swimming pool, it is entirely a robot lifeguard. While now, he may have more time to improve his business basically or accompany his family members.
More likely, a robot companion can do listen to a human being’ order, just obey in every way. And such a goal will cultivate a large number of machine slaves. They cannot violate the master’s order, so even if the master makes some movements that disobey the humanity, they are not complaining.
If humans hope advanced AI robots do not do bad things, or do good to the human at least, then the standard of good or bad should be clear. But human beings cannot make it right now. Therefore, letting the robot to complete all the mechanical work that the human beings are engaged in right now is perhaps the best developing end of the intelligent robots.