People do understand Skull cactus not a hugger social distancing shirt, as much as people understand any of the rules of society, they just choose to ignore them, a letter will make no difference. If letters could enforce the rule of law we wouldn’t need police, prisons or the judiciary system. Then these businesses need tackling, the people are not stupid we know what’s a necessity and what’s not despite these businesses being open. So I think people need to take personal responsibility for their actions regardless of whether the DIY shop is open or not.
Then that is the companies fault for being greedy Skull cactus not a hugger social distancing shirt. My husbands business that he works for stopped all but emergency work. They weren’t on the list but they understand they aren’t essential apart from emergencies. We did that we are now being stay at home or don’t you keep up. And there is is your lack of faith in the public. They are open for one reason and one reason only. Fir people to use. Otherwise they would have been made to shut. The government are banking on the people being stupid.