Why should they control it? I want to buy one copy of a book and then lend it to my friends and family members and borrow books that they have bought. I want to

Why should they control it? I want to buy one copy of a book and then lend it to my friends and family members and borrow books that they have bought. I want to give my old collection of YA sci-fi to my friend's kid. I want to browse my friends' bookshelves and borrow something that looks interesting.