You are comparing products that aren’t equivalent. If I “buy” a book on Kindle, that book might have restrictions (natural or artificial) that don’t apply to a physical book.
The product is what it is. If you don’t like it don’t buy it. If you bought a physical Xbox disc 20 years ago, you wouldn’t expect to be able to use it on PlayStation.
You are comparing products that aren’t equivalent. If I “buy” a book on Kindle, that book might have restrictions (natural or artificial) that don’t apply to a physical book.
The product is what it is. If you don’t like it don’t buy it. If you bought a physical Xbox disc 20 years ago, you wouldn’t expect to be able to use it on PlayStation.