For Many Workers, Change in Mask Policy Is a Nightmare

“Retailers were asking and requiring you to wear masks,” said Willy Solis, a shopper for the delivery app Shipt in Denton, Texas, who works in stores like Target, Kroger and CVS. “A large majority of people were still doing the right thing and wearing them.”

Since the C.D.C. announcement, however, “it’s been a complete shift,” Mr. Solis said. Denton, like Yorktown, sits in a county that supported former President Donald J. Trump by a single-digit margin in the November election.

According to the Kaiser Family Foundation, 97 percent of Democrats said in a March poll that they wore a mask “at least most of the time” when they might be in contact with people outside their homes, and a similar portion of Democrats said they believed masks limit the spread of coronavirus.

That compared with only 71 percent of Republicans who said they wore a mask outside the home at least most of the time, and just half said they thought masks were effective.

That suggests that a significant number of Republicans have worn masks only to comply with rules, not because they believed it was important, said Ashley Kirzinger, the Kaiser foundation’s associate director for public opinion and survey research. She cited polling showing that Republicans were also less likely to be vaccinated.

Matt Kennon, a room-service server at the Beau Rivage Resort and Casino in Biloxi, Miss., said that before the C.D.C. relaxed its recommendations, the resort’s policy was that all guests must wear masks in common areas unless they were eating, drinking or smoking, and that it was strictly enforced.

“There were several security checkpoints around the place where we’d have someone from security let them know, ‘Please put on a mask,’” said Mr. Kennon, a shop steward with his union, UNITE HERE. “There were stations with disposable masks for guests to wear in case they didn’t have one.”