The compression of history, the winnowing of history, may seem naturaland neutral, but it is decidedly not. It is the means by which grade schoolhistory becomes our standard adult history.
Broad ideas which are scaffolded in youth should be more closely examined as children grow and develop. Being left with only basic "myths" is a disservice not only to the students, but to the societies in which they live and the early education would be better left off if it isn't followed up on in stages at later times. Or if it's the case, then stronger versions of the basics should be included for better long term outcomes.