The closest Walmart to me is really pretty dirty. They don't have the grocery section so I really only go in there for the fabric department and sometimes the garden shop. I'm sure that will be the next department to go.
People still sew but I think it's more quilting/crafts than clothes. I've made a few simple quilts but most of the sewing I do is home decor items like drapes & slipcovers.
My Wal-mart store is clean and well run, the manager Becky is a seamtress herself so she knows what we want and need. I've been in their stores from Las Vegas to Princeton, IN and it is the best managed fabric department I've seen. Our fabric department is busy all the time.