Some of these comments amuse me, others exasperate. Such as feeling impatience for elderly customers because they move so slowly. I suffer from fibromyalgia, and believe me it can make you move slowly because you are in so much pain, old or not. And, I used to get annoyed with slow moving elderly people in grocery lines, until I began to suffer from pain issues in my thirties. Also, it must suck to not be able to move as fast as you remember being able to do, and to know that there is not a damned thing you can do about it.
Ditto for diminished visual acuity. I am not old yet, but I have suffered from an eye disorder that has given me some vision challenges. I used to work with elderly people when I was in health care. It got really depressing sometimes, but a lot of these people had great stories to tell from their younger days.
As for my own grandparents, my maternal grandmother died when I was nine years old. My paternal grandmother was a nutter. And, I never knew either of my grandfathers.
The comments about old people always complaining or having a poor attitude, could apply to any age.
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Dreams are renewable. No matter what our age or condition, there are still untapped possibilities within us and new beauty waiting to be born.
-- Dr. Dale Turner