Many others have complained about the same thing - these peeps die too young!
My Yuri was a 62 year old widower, the picture of happiness and health, well fed, normal energy, and had just recently adopted a 3 year old orphan. The game was on, minimized, and when I pulled it up, Yuri was doing the death wave, leaving poor little Bengor to mourn, then fend for himself. I suppose I will have to start a new generation now, as Bengor is too young to survive on his own.
I say if they are sent a young 'un to raise when they are in their "senior years", they should be allowed to live to at least see the kid reach 18, when they would be considered an adult. Especially when the senior citizens seem to be perfectly healthy.
I know we don't have to accept the little orphans, but I just have not had the heart to turn any orphan away.