Most elderly mobility aids aim to keep you mobile,safe and fit.
Just remember that all of your walking slowly takes it toll on your equipment and some components will eventually need replacing.
Don't risk your safety for a $1 piece of rubber. If the stoppers on your walking cane or walking frame have become worn, replace them. When the metal breaks through they go from being reliable support to a serious hazard.
When so much is riding on the effective functioning of an Elderly Mobility Aid, it is important to keep them in good shape.