Actually its not the same as real world because it's tied to an account.
If it was tied to the disc that would be different.
For example, I can let a friend borrow some chairs and still use the chairs I didn't let him borrow because the chairs aren't tied to some single commitment, each chair is individually owned. But if I want my friend to play a borrowed game, I can't play my other ones because tehyre all tied to one account that my friend would be using, necessitating that I cannot use it concurrently









