I keep hoping that's the case. But then I think they enjoy cashing selling us insulin.My daughter is in her 30s now. Its a lifetime thing, but i tell her - and I believe this - theres so much money to made from a cure that they're working on this night and day. Small solace.
He was diagnosed as an adult iirc. Surprising he had complications already.
In my experience with diabetes, especially Type 1, it largely comes down to how well the person manages their blood sugar, not just on a daily basis but overall, with the goal of limiting swings as much as possible.