My wife and I just came home from vacation, and after 4½ years of avoiding it, we have COVID.
We social distance, usually wear masks in public, and stay up to date on our vaccinations. But all it took was one lady with a mean cough on a two hour flight a week ago to ruin that...or so we think.
The timing really sucks. I had plans for my weekend.
~30% of covid cases are asymptomatic so even if everyone who felt sick cancelled (this would also include many people with colds), it wouldn't make "closed metal box with inadequate air filtration with unmasked strangers for hours" a good idea