Anyone who observes an elementary school lunchroom for even a short period of time can see that this is a disaster.
Schools have a set amount of time for a lunch period.
How that is scheduled within the allotted time is flexible. Picture your typical lunch period. Steve is even worse. He puts some cookies in his pocket to eat on the run, throws the rest of his hot lunch in the garbage, then runs off to join in the soccer game. Both children will be ravenous when school is out.