I agree with Babdoc. I also feel that we have fostered a reliance on medical intervention rather than leading healthy lives, fuelled by fresh food and exercise (walking/cycling to the shop or station).
Our mothers are both 85 and have no underlying physical health conditions. MIL is in the early stages of dementia and lives 240 miles away and has only DH in the UK. We are paying for carers to go in and cook lunch for her and to check in early evening.
Prior to the dementia she was adamant that if she developed an illness she just wanted to be pain free and not prolong if her quality of life deteriorated; my mother oth would want everything thrown at cancer or heart disease from a fear of dying. I think DH and I fall into MILS camp.
FIL dropped dead from heart disease at 79, quite literally; my father died at 72, 10 months after AML was diagnosed, again suddenly (brain haemmorhage) just as he left remission. Comparing the two, I'd say it is difficult to die well but I hope we do.
Life and death is a personal risk assessment: for DH FILS side are beleaguered with heart disease and don't live much beyond 80 but MILS side live to 90 with few ailments until their latter years.
On my side, I have no knowledge of father's side. On mother's my g grandparents were 83 and 84 (in the mid 60s), mine 85 and 89 (late 90s).
The only certain thin I will say is that my grandmother developed dementia in her early 70s and went through the entire spectrum of the disease. At the end she couldn't remember how to swallow or chew, was doubly incontinent and under 5stone when she died. The reality of dementia/alzheimers in a person with no underlying conditions is horrific and whilst I think the greatest of care needs to be taken in relation to assisted suicide, in those circumstances I would like the choice and would make it now and in advance.