I am 71 never had and as far as i am aware never caused an accident.
There is a degree of uncertainty there which is quite worrying ...!

(Only joking - I know it was a figure of speech. You
haven't caused any accidents.

)
perhaps you feel that anyone over 70 should not be cycling either.
No reasonable person would put an upper age limit on driving (or cycling!) but I think it is realistic to accept that eventually, most people's abilities do suffer as part of the ageing process. There therefore ought to be some assessment of whether that has happened to a significant extent. If it hasn't - carry on driving; if it
has, it's time to stop.
My dad loved driving, and his hips were so bad that without the car he was pretty much house-bound, but the time came when we had to force him to stop driving. He frightened me on a couple of occasions when he was 79 or 80, making mistakes that he would never have made before that. I spoke to my sister and she said that she was also worried about his driving. He was really upset about it but we had no choice - somebody was going to get badly hurt or killed if he carried on. He flatly denied that there was a problem, even when he pulled out from a side road directly into the path of a car doing about 50 mph - he'd forgotten to check in that direction ...