Children are much smarter and academically capable than our coddled and corrupt society gives them credit for.
In nearly all countries, certainly the advanced ones (and especially the ones we consider our “enemies”), ALL kids are learning algebra by 8th grade.
In Việt Nam that is certainly true. There is nothing like DEI there. Very few children are unable to keep. They do not attack the teachers or each other. In the lower grades there is much recitation. Those young data banks are stuffed with data and later grades teach reasoning about the data. Here we pretty much dispense with the data input and try to teach how to think about things before most brains are developed enough for that. When they get old enough to begin o extrapolate from the data there is no data to extrapolate. They learn how to use calculators. They do not learn math. math education teaches reasoning from data and it teaches cause and effect.