I don’t really see the point, because only the robot handler is supposed to be on the field and is not supposed to leave the field at any time… so I don’t really understand where the confusion comes from.
Also, what happens if a team comes without the armband? Would they not be allowed to have a robot handler then? How large would the armband need to be? What are acceptable colors? What if someone is wearing long sleeves that go over the armband?