Masks are optional across the U.S. Here are 3 reasons you might want to wear one

The COVID-19 pandemic has brought a new awareness for many of just how easily a disease can be transmitted, said Alison Holman, [associate professor of nursing], … at the University of California, Irvine and there are at least three reasons why some folks won’t want to shed them completely. …  “There are people who are judicious and take personal responsibility and protect themselves because of that, and that’s great,” Holman said, “In so doing, they’re taking care of themselves and other people, which is in their own interest. Even if they don’t think of it that way, it is in their own interest, ultimately.”