That’s fine unless you are buying well in advance and need to know it will still be good by the event. It will also prevent a customer like myself from noticing an item still on the shelf is a week past the sell-by date and should have been removed. Sealed cartons and other packaging prevents us from actually seeing the food, so someone could get home and open it and find it spoilt, wasting their money. “If it’s being sold at the store, it’s fine” is a mighty optimistic view of commerce. Even at a very well -run store I’ve found several packages of sliced Jarlsberg with mold inside, well before the date. And I received one with worse mold from a different grocery delivery. That’s a Jarlsberg problem. I check them carefully, the delivery shopper didn’t. He assumed if it was being sold in the store it was fine.