Agree for reduced mobility, but re:poor night vision, I can do most things in my home in pitch darkness, as well as open the door from the outside: selecting th

Agree for reduced mobility, but re:poor night vision, I can do most things in my home in pitch darkness, as well as open the door from the outside: selecting the proper key from the key ring in my pocket, "feeling" the keyhole and inserting the key without looking at anything. Whenever I change the key cylinder I verify I can still do it with the new key. This used to fascinate my wife. Now it just upsets her, she thinks I'm showing off to the kids. I'm not; I'm training for when the sun dies.