Well, I would imagine this has always been the case. We’ve been teaching US history in high school for decades. If kids were proficient by 8th grade, there would not be a need to teach it in high school.
**Obviously** and 8th grader can not be expect to have the proficiency of a mature adult in any subject. Is a “duh” needed here?
Solution: Close down the colleges of education. Fire nearly all teachers who ever attended one. Begin the process of privatizing K-12 schooling. Hire. people with real degrees and life experience in the real capitalistic system.