I've heard this question a lot over the years. If you could somehow magically re-experience reading your favorite book for the first time, would you? Would you read a book for the first time again if you could?
When people ask that theoretical question, most people answer YES. I've seen it all around, on blog posts, on tumblr, on BookTube: "I wish there was a device/magic spell that made you forget a book so you could read it for the first time all over again!"
And I get why people want there. There is nothing like the very first time you read a life-changing, gloriously entertaining, soul-igniting book. It's the best feeling ever. It's the readerly high we all crave.
My answer, though, is always a resounding "NO."