Lately, schools have been replacing junk food with healthy alternatives. School lunches are changing. Many machines are replacing soda with water. So is this a good idea? Should schools ban junk food? Should they ban students from bringing junk food from home? And what if it's in their backpacks or in their lunch boxes? And should schools ban students from sharing this junk food with their friends? Should schools ban junk food? Make your case and defend it with logic and facts.