Except they don't ? "You" can, of course, but it doesn't mean "people" need to. There is no scarcity of digital files in the world. You can create and destroy them at will. With real property, you can't. That's also the basic argument against DRM systems. The file isn't scarce. That you transferred the scarcity of resources to make the file to the file itself is something you brought upon yourself. Nobody asked you to. If it does not suit you, you are free to do everything with pen and paper, and put the papers in your wardrobe. You can't have the benefits and convenience (i.e., lack of scarcity) of digital files, and still pretend that they are scarce. Pick one.