Now medicine is at a high level, old people who have serious health problems can live out their old age without experiencing the suffering that people have experienced in the past.
It is also necessary to take into account that a person does not know when he will die and for what reason.
All people who died, especially at an old age (according to my observations), death came to them suddenly, sometimes for ridiculous reasons (which, from the point of view of forecasting, are unlikely), which suggests that the moment of their death could be fix in the natal chart.
Don't think about death.
It is worth thinking about life and how to live it better, including from the point of view of spiritual development.
When focused on life and the advancement of such, there comes a time when you can willfully leave it. There is such thing as active physical departure of the soul, a chosen death if you will. Of course this is relegated to those who have advanced the soul to a degree almost unattainable to most. Very peaceful and intentional. All the more reason to focus on your internal work.