Probably apples and oranges but I just ushered a concert at Hershey (arena, outdoors) on Friday. Our written rules (volunteer) were that we must wear masks at indoor locations (concourse, break room, bathrooms, etc). This was not enforced at all. The paid staff wasn’t wearing them in these areas, the volunteer organizers weren’t wearing them.
Even if they did, as soon as you walk 10 feet into the stands, you’re then shoulder to shoulder with thousands of unmasked. I’d say roughly 5% or less of guests chose to wear masks the entire time. Besides all that, I was touching tickets, throwing trash away for people, super close to people because you couldn’t hear questions. The rules just seemed moot when you allow masks to be removed sometimes.
I’m fully vaccinated so I wasn’t too worried and do what’s necessary to get into the Dome, just offering my experience.