Usefull robot

Sometimes when I make research for robot's news , I'm wondering about the real purpose of their utility. Robot has a fonction, replace human for hard work, " robota" in the biginning. All the compagnies are showing them playing football, playing violin and other useless demonstration. This video is for me one of the most ridiculous. Of course I understand the technological target but sometimes I'm wondering if labo teams are not working for circus of the future.