Stock photo: People wearing protective masks walk from a Walmart store on May 18, 2021 in Hallandale Beach, Florida. Walmart announced that customers who are fully vaccinated against Covid-19 will not need to wear a mask in its stores, unless one is required by state or local laws. The announcement came after the Centers for Disease Control and Prevention said that fully vaccinated people do not need to wear a mask or stay 6 feet apart from others in most cases, whether indoors or outdoors. (Photo by Joe Raedle/Getty Images)