Too hard for the teacher or the student?
My guess is for the former.
More and more the quality of person going in to teaching seems to be the lazy and willfully ignorant. The type of person that is interested in working 9 months out of the year and getting an early retirement and government benefits.
A hard book to read is a hard book to teach. Talk about grade inflation now we have education deflation.
My senior English teacher re-read every book he taught every year and he taught for thirty years.
You don’t see many like that anymore.
I went to Catholic schools. I had already read all those classics by the sixth grade. Perhaps there is a fundamental problem with the entire “gummint” system if something is still “too hard to read” by the time of Sr. High skrool?