Let us know what you decide chatty.
For yourself, you could simply stick to safe routes with smooth surfaces.
However I personally know of several people who are the opposite: they are gung-ho about cycling in their middle years and beyond. So they do lots of it --this includes women.
Experienced cyclists usually have fallen at least once in their lifetime (minus childhood since we're more resilent at that time).
Let me give a different story of inspiration:
My partner is currently cycling in southern Quebec by himself. He's done around 500 kms. so far. Most likely has an additional 400 kms. to do over next 6 days. Yesterday he was in a pleasant suburb in a retail area. He watched a hunched over old man walking with a cane ..walk to his adult tricycle. The guy carefully and slowly placed his cane in his back basket and mounted the bike. biked away.
Several hrs. later by coincidence, my partner had to go grocery shopping several blocks away. He stopped by to park his bike and noticed the same tricycle parked also. My partner was impressed.
So my half-joke to him over the phone last night was:
"Ok dearie. I know you plan to cycle when you're 90."
In all honesty, it wouldn't surprise me. He has fallen on his arm...when he was in his mid-50's. It mended after a few weeks. But his body is geared to cycle to feel better.
Does it worry me? I worry abit about the car traffic for him but then it doesn't stop me...I just plan regular routes that minimize daily exposure to car traffic (can't eliminate it, it's a fact of city life), i don't cycle on gravel often and walk my bike if gravel road/path has a hill I can't descent/ascend confidently.
It is important to do some additional exercises for stretching (to prevent /reduce sudden back /muscle pain/spasms) and balance in general also. Tai chi and yoga, for instance, has a number of poses for gentle suitable balance improvement (some poses require balancing slowly on 1 leg, while standing), coordination, etc.
Speaking of which I have to get back into such exercises. I've been neglectful last 2 wks. while visiting people. I also have my lst yoga & pilates class later this wk. and don't want to be too sore on lst day.