Ok, so let's get down to the lunchbox. No not that one, the watershed isn't upon us yet.
I get the generic trying to do generic 'good' and all to tackle obesity in kids. However why should my perfectly healthy weight kids be taught that some foods are bad (by them not being allowed in school), rather than everything in moderation, which makes much more sense.
Let's face it, who doesn't want something that's banned, I will escalate my example to prohibition in the USA. 