I have to hang on going up and down stairs and any kind of steps, too. If we are out shopping , Bobby holds on to me and helps me up and down on curbs from the street to the sidewalk. (He gets an A+ for the day ! )
My knees are an if and maybe thing, plus the balance is not any good, so hanging on is the safest thing for me at this point.
As for naps, I usually don’t take a nap, but some days, if we are up around 4-5 AM, I am tired by around 4, and might lie down and sleep for an hour, but it is a planned nap, not an accidental one.