I do not shop at Walmart unless I think they are the only ones in town with what I may be needing. Several years ago I was going to stop in their coffee shop and get a cup so I offered to get a cup for the "greeter". He told me he was not allowed to have it. Further into the conversation he told me he had a bad back and was not allowed to lean up against the wall on occasion to ease his back. The incident turned me against Walmart.
Even with my dislike for them, I must admit they are a much better run organization that the US Government.