People who are either stupid or ignorant or rebellious about wearing a mask are putting others at risk of infection. As long as there are people like that the Covid virus will not be eliminated
One incident in the public domain........
193 people on an aircraft from Zante to Cardiff , several of them tested positive for Covid after the flight.
Quoting from
https://www.bbc.co.uk/news/uk-wales-53966897
Stephanie Whitfield, from Cardiff, who was on the flight with her partner, told the BBC she was not surprised.
She said she and her husband "decided to isolate for two weeks on the flight", before they even learnt about the positive cases.
"This flight was a debacle. The chap next to me had his mask around his neck. Not only did the airline not pull him up on it, they gave him a free drink when he said he knew a member of the crew.
"Loads of people were taking their masks off and wandering up and down the aisles to talk to others.
"As soon as the flight landed, a load of people took their masks off immediately. The flight was full of selfish 'covidiots' and an inept crew who couldn't care less."
Stephanie said she and her husband had both had sent off for a test and would return it as soon as possible.
"We've got a few symptoms, but we hope it's a cold. We've had a bit of a cough, a sore throat, a headache.
"I'm angry more than anything."