I think it’s a good move. I do not shop at Costco, but I do shop at Aldi. And, here’s an example of the fools out in the stores. I arrived at Aldi upon their opening and it was already very busy. I’m not sick, but I’m over sixty, so I have a greater risk should I contract this virus. I’m not paranoid, but I am practicing the mitigation behaviors we’ve been recommended. No reason not to do this. So, as I’m trying to pick out my items, there is a woman with a cart who is shopping, all the while her husband and teenage daughter are just hanging out...yes, hanging out by blocking the refrigerator doors, blocking the cases with the lunch meats and deli cheeses, and just standing in the way of my trying to get my shopping done. Seriously! Why? Why? What fools! Stay home, idiots! Glad Costco is doing this. I heard Home Depot is doing something similar.
I’ve read that some stores are limiting the first opening hour to senior citizens only. That makes sense in times like these.