You missed the entire point...LOL!One at a time, Pledge of Allegiance--um, support of the government that you live under? Songs? To disseminate musical education? Same books? What would you suggest? Different books? One that teaches 2 + 2 = 4 and one that teaches 2 + 2 = 75? Maybe science books that teach that there are 527 different genders? Use your head. Sounds like you went to one of those alternative education schools or did you escape from the Jim Jones school of kool-aid consumption?
it's the unwritten rules that we learn..everything from how to carry a chair to how to socialize. We learn gender identifies and the unique markers we've designed for each.
I went to as classic a 1950's elementary as you could imagine.
But I learned to read from the same book that a 1st grader anywhere in US did. We learned in lockstep..whether or not you know it.
I suspect that that changed a long time ago.