Why not teach the Book of Changes at school? There are I Ching in the Four Books and Five Classics.

First, the previous anti-feudal influence was not recognized by the society, and it was considered superstition when I mentioned the Book of Changes.

Second, the Book of Changes is a science, involving a very large range. Learning needs a deep theoretical foundation, not to say that you can understand it by your own guess. Even if you learn the Book of Changes, you will master the core of the Book of Changes and become a master. Taking the Book of Changes as a teaching material, where there are so many teachers to teach, meeting unqualified teachers will only make learners more and more biased, which has no practical effect at all and may have side effects.