Do all countries just come up with a national anthem on their own? Like, they all just knew, at some point, "We should have a song for our country"?
The first time countries all got together, was it like, "Hey, what's your anthem? Oh, cool, this is ours [sings anthem]. Hey, how about you guys, what's your anthem?"
"Um... our anthem... um."
"What, seriously? You don't have an anthem?"
"We never really thought about it..."
"Dude, everyone's got one."
"No one told us. Shit."