Decades ago, in Germany, on base, the first graders had to go home for lunch and then back to school. Our base housing unit was almost but not quite to where you got to ride a school bus. So up and down a steep hill and four flights of stairs every day was probably the best exercise I ever had. We weren’t allowed to bring lunch to school, even if it was difficult to get back to our classrooms on time.
The second-grade-and-up classrooms were in a building on the further side of the school compound, so they allowed the students to eat at their desks. Of course, that meant you had to bring your own food.
I had the same experience but not on a base. The school was a bit less than a half mile away. We had one hour to get all the Christmas Story level winter clothes on, walk home, eat lunch, gear up, walk back, ungear and get in our desks.