Treat it as a signal, not an accident -- a first fall is one of the strongest predictors of the next one. Get the cause investigated (medications, vision, inner-ear issues), fix the immediate environment, and ask CICOA Aging & In-Home Solutions about equipment-lending programs.
How families here handle this
The weeks after a fall matter as much as the fall itself: fear of falling again causes many older adults to move less, which weakens them further and raises the odds of a second fall, creating a cycle that is worth actively interrupting rather than waiting out. Ask specifically whether anyone was present when the fall happened -- a fall with no one there is a meaningfully different situation than one with someone in the next room, and it should change how urgently you look at other living arrangements.