`Huge bummer’: July Fourth will test Americans’ discipline

People wearing protective face masks walk past a closed entrance to the beach during the new coronavirus pandemic, Friday, July 3, 2020, in the South Beach neighborhood of Miami Beach, Fla. Beaches throughout South Florida are closed for the busy Fourth of July weekend to avoid further spread of the new coronavirus. (AP Photo/Lynne Sladky)

Flags line the beach in Belmar, N.J., on June 28, 2020. With large crowds expected at the Jersey Shore for the July Fourth weekend, some are worried that a failure to heed mask-wearing and social distancing protocols could accelerate the spread of the coronavirus. (AP Photo/Wayne Parry)

The U.S. headed into the Fourth of July weekend with many parades and fireworks displays canceled, beaches and bars closed and health authorities warning that this will be a crucial test of Americans’ self-control that could determine the trajectory of the surging coronavirus outbreak.