Nope, it's not.
My mum will be 92 next week. She was telling me about all of her friends dying at regular intervals these days. Not complaining, just stating it very matter-of-factly. I don't think she is ready to go anytime soon, but she's got a point.
My nan was 4 days shy of 101 when she died. The world's oldest aspie, I used to label her. She was utterly clear in the head right to the end, with very few health issue beyond the advancing age, but she always complained about everyone dying or losing their facilities around her. It was no fun but she had her books. Until she started losing her eyesight in earnest and couldn't read anymore. Thinking she found some relief in the contraband we all provided her with, wine, chocolate, etc, but no longer being able to read did it for her.
We all need something to live for.