Well, I could see this in certain circumstances. I refuse to shop in certain stores because it would appear there are fewer precautions (trollies you have to put a coin in so touching two trollies), no cleaner fit the trollies, crowded shop with long queues at check out, too many people without masks on, poor store lay out that you have to be in close proximity of the people in the queue just to get past in the aisles.
We have three food stores in our town, there is only one I am comfortable shopping in. They still have someone cleaning the trollies and will take your trolley so as not to get mixed up with those not yet sanitised. Hand sanitiser at the door and at the check out, cashier wipes the card key pad, they do not allow queues to build up. They’ll have people you wait outside and put more staff on tills. For some reason, it is very very rare to see anyone not wearing a mask in this shop.
But like any situation, where there is more opportunity for something to happen, the more likely it will. The more times you go out, the more opportunities to catch covid, the more people with whom you’re in close proximity, the greater the chance to catch it.