A classroom concept:
I seriously doubt that the Utrom population as a whole doesn't seem to do any kind of personalization on their walkers, nor is there any apparent form of body decoration, like paint or piercings. So my little kindergarten teacher here demonstrates all of these. She even has rubber safety tips on the ends of her walker legs. I guess it would be her "work walker", since it's built to be lower to the floor than the ones we mostly see.
There's also only five kids. Because of how long Utroms live, they likely have a fairly low birthrate.