[Noah930]

What happens when you confront him on the long term dangers of poor diabetic compliance? He just brushes off your concern?

Diabetes is a problem because you feel fine, until you're not. That's why your dad (and many other diabetics) ignore their condition until permanent damage has been done. You usually don't die of diabetes, but rather a complication of it. One problem is that your body is now a lot older physiologically than it is chronologically. So you're 60 going on 80, or 80 going on 95. So it's much harder to bounce back from things. And it's mot just death itself, but the unpleasant manner in which people struggle towards their ends. I think of those diabetic amputations; first a toe, then half a foot, and then at the knee. It's a lot of suffering.

Ask him if he wants to see his grandkids, or if there's something else he wants to do longish term. Give him a reason to take his health more seriously.