I really think this is a failure of education, teaching kids that there are N continents as if that were some kind of objective truth, as opposed to the reality

I really think this is a failure of education, teaching kids that there are N continents as if that were some kind of objective truth, as opposed to the reality that the definition of “continent” is at least partially conventional, so there are several different values of N which are arguably correct - anything from 4 to 7 is mainstream (at a global level) Wikipedia is helping, though. It says (I didn’t know this) that the “single American continent” model was mainstream in the US prior to WW2, so even if there is now a single definition in the Anglosphere, that’s a relatively recent development. I remember as a kid believing that the Americas contained three continents-North, Central and South. I’m sure I’m not the only person to have ever thought that, and given how conventional these definitions are, can it really be said to be wrong?