If all businesses do that, maybe it won't be that bad.
I don't see enough of it. Unless all businesses require masks and sensible distancing in appropriate circumstances, I'm not sure we'll be able to slow this thing down. We'll see i guess.
It's likely to vary by locality - but I don't think that many are. Participation will likely be at the big corporate level, and then below that, based on how committed the owners are. Some will be but many small and medium business owners (understandably) just want to get back to business.
It's a gamble at this point. It might reignite hot spots and light new ones - but new outbreaks probably take two or three weeks before they're fully appreciated. Or that might not happen - it might go pretty well. But nobody really knows that . . . I mean nobody.