I recall going to school with sugar sandwiches... yes, two slices of white bread buttered and sprinkled with sugar.

On occasion, crisps or Bovril would replace the sugar.... but we were all the same and had no arse in our trousers in the 60's. Also, you brought your milk with you and most of my class arrived everyday to school with milk in Whiskey bottles !!!! Can you imaging the alarm bells today.

My kids think I'm making it up tbh.