This is all very abstract; I am unable to identify one specific recommendation here as to how to reduce acquired diabetes and obesity in young people.
This discussion has drifted a long way from your original claim, "IMHO caring is giving what people want, not trying to do what you declare good for them." In the case of diabetes and obesity, patterns of consumption are formed in childhood. My wife knows a mother who took the position you are advocating here literally, and now that her children are in their late teens, it is resulting in all sorts of problems for both them and her.
For you, me, and everyone else, no matter what ideological position one holds, there are a lot of problems having no easy solutions.
The present thread was about the Gates Foundation (and similar institutions primarily targeting whole populations, that is to say adults and, through them, their children), and I answered 'give them what they want', meaning in this context 'when caring for adult people, give them what they explicitly ask for (not what you prefer)' and also (as such a Foundation has to aim for the greater good): 'if and only if you objectively think this will be good for them and not bad for others'.
Youngsters aren't mature, therefore we cannot merely give them what they want. We have to educate them, which is maintaining them in an adequate context while guiding them towards finding what they want and will be good for them and not bad for others. In my opinion our contemporary society very rarely offers such an adequate context. Hoarding kids in overpopulated classrooms where they sit for hours with adults having few (if any) personal interconnection with them is apparently the most efficient way... and (IMHO) a recipe for disaster (diabetes and obesity getting out of control being part of it).
I didn't wrote that my approach is simple and explicitly stated, above, ((that)) 'It is, however, more difficult' than the usual 'select a cure for the symptom and impose it'.
This discussion has drifted a long way from your original claim, "IMHO caring is giving what people want, not trying to do what you declare good for them." In the case of diabetes and obesity, patterns of consumption are formed in childhood. My wife knows a mother who took the position you are advocating here literally, and now that her children are in their late teens, it is resulting in all sorts of problems for both them and her.
For you, me, and everyone else, no matter what ideological position one holds, there are a lot of problems having no easy solutions.