Some kids are fat and end up fine later. In fact, some of the fat kids from when I was a kid are now normal. A lot of the "skinny" kids are now fat. Particularly a lot of girls. For the ones who are lifetime fattys, so be it. Whether the bitch gives them a fun size Reese's or not isn't gonna make a god damn bit of difference so why bother singling them out? They're kids.
And anyone who says they wouldn't give a piece of candy to a chubby kid on Halloween because they "don't want to contribute to their obesity and then make society fit the bill later on" should be disemboweled with a wooden cooking spoon.