My supermarket always has an assistant, push a store table round marking down with a yellow sticker items where the date stamp is today.
Of course, what you chose to do with it when you get home is your choice. But I always, smell, look, taste a dip of it if necessary. If in doubt dispose of, otherwise enjoy. My current yogurt is stamped 28th December, but it still is ok and I am eating it ! Mrs Bouquet