This is one of the reasons whenever the topic of math curricula comes up on HN I've tended to argue to remove some things. The system is full up at the moment and you can't really add anything without removing some things. But I can't even get HN readers to agree that some things should be removed, let alone normal people. Everyone wants to add but no one is willing to remove anything, no matter how useless it is for all purposes practical, mathematical, scientific, and every other purpose. With the curriculum highly centralized and standardized, change to what is taught has proved to be on the scale of multiple decades if not centuries, and not in a good way.
Changes to how The Holy Curriculum is taught can occur on decades, but what has changed hardly at all, despite the fact that frankly the curriculum was audibly creaking when I was doing it in the 1980s... at least, if you tried to hear the creaking. Even then it was obvious that what we were being taught had been frozen circa 1930 or 1940 and needed updating for a number of reasons. It's even more out of step with the world now, in every way, but here we are.
Changes to how The Holy Curriculum is taught can occur on decades, but what has changed hardly at all, despite the fact that frankly the curriculum was audibly creaking when I was doing it in the 1980s... at least, if you tried to hear the creaking. Even then it was obvious that what we were being taught had been frozen circa 1930 or 1940 and needed updating for a number of reasons. It's even more out of step with the world now, in every way, but here we are.