Nervous workers struggle to adjust to new mask policies

An abrupt relaxation of mask policies has left workers at supermarkets and other stores reeling as they try to sort out what the new environment means for their own safety and relationship with customers.

Kroger, the country’s largest grocery chain, became one of the latest to announce that, starting Thursday, workers and customers can stop wearing masks in states where mandates are no longer in effect. Other companies that have adopted similar changes include Amazon, Walmart, Best Buy, Macy’s, Costco, Home Depot, Trader Joe’s and Target, following updated guidance from...