Kids still get milk and a bun today in my country, in primary school. Back in my time packed lunches were a thing but it was usually some kind of sandwich and a fruit, nothing more. There was a shop with snacks and sweets but nobody had enough money to get fat from those 😂. My older kid is in a long program school (until 4 pm) and he gets a soup, main course and a tiny desert. Junk food is quite expensive there.