i might be completely wrong but maybe they don't know how people get that way becasue they've never had a problem. i'm taking another shot in the dark; maybe it's becasue they did have a huge problem and they wanted to raise you better- i don't know what it is though becasue my whole family's big and we don't ever say anything about weight to each other except about ourselves. i don't know though so i might have just confused you more...