I reread books all the time. Most of them are stories that I take great delight in encountering again and again; they never get boring, I’m always experiencing something new and delightful. Books like “Crime and Punishment”, “The Great Gatsby”, and “Ender’s Game” are going to be very different when you reread them, i.e. reading them in high school, then rereading them when you’re an adult in your 40’s.
When you reread a book, you are not the same person you were the first time you read it; likewise the book is not the same, because you have changed. Books take on new meanings and experiences depending on when we re-encounter them.
Are you suggesting that, one should only do something once and never again? Would you say the same thing about riding a bicycle, or skydiving, or dining at a restaurant, or talking to someone you like?
“Pageboy” by Elliot Page. Got to page 60-something before I put it down and left it at the coffeehouse I was reading it in. One of the worst memoirs I’ve ever read, poorly written and lacked coherence and direction.