My local Safeway isn’t what I would call a very modern store. And the employees are either high-school kids bagging groceries and collecting carts, or middle-aged cashiers, bakers and butchers. It was a big step forward a few years ago when I could sign for my credit card purchase on an electronic device. This morning, I had just finished my transaction when the store manager stepped up and said, “Mr. Taylor?” I nodded my head slowly as I didn’t think he knew my....