Getting back to the topic of falling. As we reach our 60s & 70s, strength and balance are no longer a given. To improve or maintain them requires effort.
I don't always get around to a half hour or longer walk, but unless literally sick in bed, I do the following every day:
Without using my hands for help or balance, I sit down in the middle of the floor away from any furniture, then stand back up - also without using my hands. Ten times in a row. I also make time for enough stair climbing that I can feel the burn.
When the coffee is brewing, and standing as far from my kitchen counter as I can reach, I do 15 slow standing pushups against it.
While brushing my teeth before bed I practice my balance. Standing next to, but not touching the bathroom counter, I stand on one foot and hold that position for a full minute (my electric toothbrush acts as my timer - it pauses every 30 seconds). Repeat with the other foot. I keep my left hand by my side and brush with the right.
These little life routines may sound silly, but many people my age (72) can no longer do any of these. The only way to regain or maintiian strength and balance is to work at it. Use it or lose it, as the saying goes.