Hungarian kids eat chips or other sweets, including as part of lunch. Sometikes they get pirely sweet lunch or pizza. And American kids don't have chips as lunch given by school to them.
Hungarian kids don't eat chips as part of lunch (unless their parents packed them it for breakfast, but for lunch they do not give them chips). Where have you have gotten this from? I have never encountered a place where it is common, at all, and I have been to many schools, kindergartens, hospitals, and rehabs.