Should junk food be banned from school?

Banning junk food could be a good idea because it would be helpful for eating healthy. But let's think about the bad thing.

 Kids already break so many rules why put junk food not allowed when yet people can still bring it in so there is no point.  If you see, bringing junk food is just a little treat for the kids but I still can't see why junk food should be banned.

Furthermore, if I were to ban unhealthy food, I strongly believe that if someone cared about what kids weighed and what they ate they would have to encourage the kids them self to stop. It is not a situation that should be brought up to school, such as fat shaming.

Another point is that by banning junk food, The school would have to put a lot of work into it. Like I said in my first argument they break so many rules it could cause some chaos. When I say chaos I mean kids getting in trouble for bringing a packet of chips and kids sneaking them in.

 So my answer is no. If you could see there is a point in my argument so I say no banning our junk food.