The fact is that copyright only applies to specific situations, it does not give you complete control over the thing you made and what can be done with it.
If I buy your book, I can lend it to a friend and they can read it without paying you. I can read it out loud to my children. I can cross out your words and write in my own, even if it completely changes the meaning of the story. I can highlight passages and write in the margins. I can tear pages out and use them for kindling. I can go through and tally up how many times you use each word.
Copyright only gives you control over copies, end even then there are limits on that control.