This could be from any age really. I remember reading lots of books like Harry Potter as a 4th grader to seem smart to the teachers looking at me but I didn’t understand any of it. When the big YA dystopian boom was happening, I read tons of terrible YA dystopias to seem cool but many of them frustrated me.
I’ve always felt the same way as you to be honest. In fact part of why I got into reading was that I started writing short stories outside of the education system. Then, when I read books outside of school, it felt far more freeing.