I still see it as a minor gap in education that can be filled in with a sentence or two and may or may not be remembered, but often times these little things are remembered as they’re the “break” the brain gets from actually doing math. It’s got a higher chance of being remembered than the number of ATP in the electron transport chain from Bio.
It might not be as critical as knowing the air we breathe normally isn’t 100% oxygen as that one could have rather “interesting” consequences if anyone were to get it wrong, but many of us know lots of facts we don’t necessarily use all the time. At the very least it’s turning on a new brain neuron in a teen - one they can reuse later for something else if they wish - so no harm.
Then there’s the advantage of not looking dumb if it comes up in a poll or on trivia night. 