What happens to stores when AI agents do the shopping?

Fifty years ago, Susan was one of more than a hundred million Americans who drove to a shopping mall an average of once a week to buy things. By 1976, a third of all retail sales happened at the mall. Susan shopped exactly the way the mall designers intended. The department store anchors were the magnets motivating her to make the trip in the first place. The smaller shops lining the corridors between them turned her walk from point A to point B into a series of serendipitous purchases that kept the whole ecosystem humming, including a stop or two at the food court to grab lunch or dinner.