In our village, people used to die of old age only and not due to any health problems. Village doctors used plant based medicine and treat the common illness such as fever or broken bones. This was in the 60's and 70's.
But then there is also this shutdown where body starts switching off organs one by one, and hospital personnel know this well since its visible to trained eye, and known as time of no return. My grandfather went away like that.
Old age is rough but I would rather go out that way than a long drawn out terminal illness.