I'd argue that it'd be worse if you could teach your book, and a 50 year old who both has rich lived experience and grew up in the time period the book was talking about has the exact same understanding of said book as a bored edgy 16 year old.
Either you're a godly teacher, or chances are the book doesn't have much depth. And maybe you are a really good teacher, I certainly wouldn't want to teach public school teenagers for a job. But while I'm charitable to teachers, I'm also charitable to the depth of novels.
I read Dostoevsky when I was 16 and I'm still learning more things about him and myself a decade later.
Often times an interesting novel will prompt me to study the cultural context independently.
There was still tremendous value in exposing myself to Dostoyevsky as a teenager. I have observed myself make the same mistakes as his characters, blinded in the moment by emotion. He had so much insight into human nature - but even if forewarning doesn't prevent us from folly, it can highlight a path to acceptance, repentance or redemption that otherwise may take a lifetime of self-reflection.
I don't mean that in a religious context, if that matters.
Honestly, this is why at the conclusion of many books we would watch the movie (when available). Many movie adaptations are period pieces in terms of fashion and depicting struggles/victories that contemporary readers may not be able intuitively grasp.
That said, I'm also frequently amazed at the stuff some people didn't learn that I clearly remember being covered in school...
Most of my time was spent on grinding stem subjects