I get it. I know we've been over this a thousand times but the mask's primary purpose is to prevent you from spreading a virus to someone else. Assume your Barber is infected from a friend, neighbor, whatever. He has his hands and instruments all over your head. You don't know if he sanitizing those tools after each use. It doesn't matter if he's wearing a mask or that he has no symptoms. Given the close quarters its simply too easy for his virus to pass on to you and then you either get sick or pass it on to someone who does. Because of this my wife is becoming quite a good barber.