Our local Tesco does very well, and people are adhering to the queueing, one way system and staying in your square, in the main.
Have to say it seems to be older folk who are the most impatient. I was waiting for the lady in front of me to move on after choosing her item, an oldish lady behind me kept pushing her trolley more into my square and huffing. I turned round and gave her ‘ a look’. I said nothing, but felt like saying, “Just wait your turn, I doubt if you have heaps to do when you get home anyway!”
And yes, I don’t know if she had left a sick husband or someone at home, but we have an excellent volunteer system in our community, she looked the age to be a suitable candidate.