Old age can make a familiar staircase become a new negotiation.

A house does not change while the body’s relationship to it does. Stairs that were nothing for forty years become a calculation about knees, breath and whether to make the trip twice. None of that is a failure of character; it is the ordinary arithmetic of different conditions. The negotiation is real work, and it is usually done silently.

If someone you love is doing that arithmetic, ask what would help before offering an arm. A rail, a chair on the landing or a light at the top can matter more than assistance. Adapting your own stairs early is not surrender, it keeps the house usable for longer.