It depends upon whether people are retired or not. I cannot tell you how many retired people (I am retired, but don't include me in this group) have said to me they have to change their clothes because they're going to the Walmart.
When I was going to quilt meetings, it also depended upon where people were coming from to get to the meeting. It was usually around six-thirty or seven, and a lot of people came straight from work. I would wear sneakers, because,
quite frankly, I don't think I've had a shoe on since I retired. I have a pair of nice sneakers, though, that are going to restaurant quality. I would suggest that other than going naked, you wear whatever you want to.