There already was such a standard. Physical good stores. A large chain will not risk their reputation by selling you a dud, or counterfeit item. They're also ea

There already was such a standard. Physical good stores. A large chain will not risk their reputation by selling you a dud, or counterfeit item. They're also easier to sue in your local jurisdiction than some random online seller, etc etc. People have made their choice, and they would rather save money by shopping online.