@GracieGirl,
Mother was a diabetic, as was Uncle Stephen, as was....come to think of it there's been quite a few in my family; both in the bloodline family and the adopted family...
It's not just the diabetes which is problematic, there are all the extra side issues which go with it, such as blindness and kidney damage and many other horrifying problems.
In the words of our hero, Wilford Brimley: "If you have diabetes, you check your blood sugar and you check it often. There's no reason not to."
Besides, diabetic comas and insulin shock aren't pretty sights.