Portion sizes

This probably asked a lot, but all kids of different ages and stadiums in life get the same portion?!

Everytime she makes lunch all kids get the same amount. This can’t be healthy right? Atleast 1 is overeating and/or undereating. Personally I never ate the same sizes as my siblings (2 years differences) and surely not everyone eats the same and/or the same amount. And I have so many questions about the lunches🫣 They do not look nutritional at all. Idk what like average lunch in America is, I am not from there. But we were required to have like bread or something for breaks and had to get milk at one point (different story if you had a cow-Milk allergy or lactose intolerance) and we surely weren’t allowed to take candy or crisps (I know uk is allowed to have crisps?) with us. Cookies and 1 piece of fruits it was😅