I can bet a significant % of Americans cannot draw the American flag, and also do not know the full lyrics to the anthem.
Singapore has a national anthem that most of the population literally doesn't even understand the words to. (although "patriotism" is a strange thing when it comes to Singapore)
Full lyrics.Well yes. Probably close to 100% do not know the full lyrics or even know there are more lyrics. This isn't really in the same ballpark as your other examples.
