Sounds familiar, I have to use one of the powered shopping carts whenever we go grocery shopping now because I can no longer stand on my feet for very long. I used to be able to lean on the shopping cart and get away without having to resort to using one, but not any more.
It's almost embarrassing, I'm only 66, but my feet, knees, and hips make something as simple as walking, and now driving very difficult.
My wife and I like to go to a couple of local car shows every summer with some friends of ours, which means lots of walking on a hard surface. Last year I was able to manage with my walking stick to help with my balance issues, but I have no idea what I'm going to do. We've only got a few months to figure out if I can even go this year.