I have had several friends in their 70's have pretty devastating injuries from falls off of ladders, one killed falling off a roof, etc. These result in replaced hips and other stuff or more permanent damage.
I have purposely attempted to reduce my exposure to these injuries. No climbing on the roof, very careful ladder use, and not too high, etc.
I think our coordination, eyesight and other things don't work quite as well as they used to.
What about you other 70'ers and 60'ers?