Badges mean nothing in themselves but they mark a certain achievement and they are a link between the rich and the poor. For when one girl sees a badge on a sister Scout's arm if that girl has won the same badge it at once awakens an interest and sympathy between them.
How many deaf people do you know in real life? Unless they live in a cave or are 14 which seems to be true for most people in this business what could I possibly tell them that they don't already know?