Except when you get the conspiracy theorists who still insist this is all fake and then go and cough and sneeze everwhere when they're actually Cov+.
Went to Costco today. They've stopped limiting the number of people in the store (so no lineups anymore) but they "strongly advise" customers wear a mask - they were even selling them for $1 each at the door. Guy in front of me asks "do I have to?", employee answers "We strongly recommend it", he mutters under his breath and walks away. Proceeds to cough 30 feet inside the building. I went way wide around him.
Anyhow, re theme parks, pretty sure that the season is a loss for Canada's Wonderland any any other theme parks on this side of the border - it'd be impossible to make them workable especially when you throw a few thousand Covidiots (Cough, Trinity Bellwoods) in the mix.