Happened to me just last week at Walmart. I picked up a 24 pack of Diet Coke and the bottom fell out, scattering cans across the floor. A younger woman saw it happen and helped me pick up the escapees. She then asked if I wanted the soda and picked up a (different) 24 pack and put it in my cart. I thanked her and she went on her way.
The humorous part is that I fiddled at another display til she was out of sight before I put a 24 pack of Coke in the cart for my DH.
I will be 70 in the spring and know that, with my jowls and lines, I probably look at least my age if not older, but I am still coming to terms with being a "senior." I also have lost more than 50 pounds on Weight Watchers, so, at about 130 pounds, I probably look frail. Gotta laugh or I would cry.