That’s exactly what gets my back up too mate. I work Monday to Friday, I go by myself to the supermarket to do all the shopping once a week (which I absolutely despise, particularly the packing up at the end!) so it’s only me that’s really taking any risk, my wife and kids are all effectively self isolating. I get there, and there’s whole families with the kids just running round the place.
I’ve got three kids, I get the change of scenery for them is absolutely needed from time to time. Take them to the park or for a walk though, not to the supermarket.