Headcanon
Have you ever wonder why there are nations have glasses and some have not? Well the 6 nations(America, Canada, Austria, Sweden, Estonia and Monaco) have different reasons. Sometimes, it's from the wars they've wanted that made peace blind, or sometimes after the war, their eye sight is becoming blurry because of the terrible things that happen. Monaco's eye sight isn't that much high. She has a short history with France
Well lucky for the nations that doesn't have glasses, They survived every pain. But for America and Sweden, they have times that went bad and tragic.
