I have fallen and landed with my full 200 pounds on the phone held in my hand grinding across 2 feet of asphalt. The scratch on the case is barely visible.
I walk the dogs on the beach at night, dropped the phone in the surf and watched the lit screen at night in the dark washed up the beach 20 feet away from me under the wave. I’m still typing on this indestructible beast.
You will pry my xcover pro 6 with swappable battery out of my cold dead hands.
Memory and visual attention when you get closer to 60. You can’t remember all 10 digits of a new phone number with an unfamiliar area code; often one of the 4 last numbers will end up transposed with a neighbor. Visual attention: looking on your garage shelves or cupboards for an item and not seeing it even though it’s in plain sight.