About 15 years ago my daughter was in an extended French school in Mississauga. She was in grade 5 at the time and she forgot her lunch so I headed over to the school to drop it off. What I noticed was that other parents too were dropping off their children's lunches. 
What astounded me was the number of Macdonalds and pizza containers that were piled up in the front office. These were the lunches  that parents were purposely providing for school age children. 
On top of that, every Wednesday was pizza day so, we knew that meal was a write off. I don't have an issue with schools eliminating junk food from school property. It's the parents we have to really be concerned with.