Trick-or-treating is back for 2021. After a year when COVID-19 meant that many Halloween events were canceled and trick-or-treating was discouraged, kids can again don costumes and hit the sidewalks. Earlier this month, Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases and the chief medical advisor to the President, went on CNN’s State of the Union with a simple message: “Go out there and enjoy Halloween.” Fauci said that particularly for vaccinated individuals, outdoor Halloween events like trick-or-treating would be considered a safe activity. For the unvaccinated, including young children, Fauci urged those that can…