I agree, its not the schools fault all the time, BUT, at my childrens schools (2 different schools/grade levels) they reward the kids CONSTANTLY with candy and sugar. If they arent teaching a real class on nutrition, they are sure teaching to reward themselves with crap food subliminally.
Every B-day party is cupcakes and cookies and soda, every friday is 'YOU BEEN A GOOD KID' reward day for certain kids (who get 2 big ropes of licorice), lunches at their schools are a joke of pizza, nachos, chicken nuggets and cheese roll ups. Every holiday is an excuse to LOAD up on candy and treats (our schools have BANNED any and all home made foods, plus any allergy trigger foods). Kids who do well or improve a skill are givin a 'free meal ticket' at one of several fast food joints- another crap food reward. BIG ice-cream parties are held for the class with the most 'box-tops' brought in, or the most book orders, or who walked/ran the most laps. Rewards of crap and sugar for darn near EVERY accoplishment.
And lets not forget the candy and soda machines at all the schools (at least at the middle schools and high schools in my area). At our schools, the kids get a card that the parents pre-load with money so they can buy their lunch at school, and the machines are hooked up to the cards!! Before you say "Dont give your kids the cards!", the school has a policy that says if you are paying cash, you go to the end of the line for lunch and get whatever is left over from all the other kids (usually the stale nachos no other kids wanted). Yes, our kids can brown-bag it, BUT WHERE are they supposed to keep their lunch??????? They dont have lockers at our schools at all, and they make the kids carry ALL their books to every class. Have you seen the books? My DD has HUGE backpack and it is barely able to zip shut due to books, notebooks, and supplies for all her classes, let alone a lunch. Just how much stuff is she supposed to carry? Her backpack weighs 20 pounds or more already! AND there have been days she had to carry books in her hands as well as her backpack. God forbid she trip and fall.
In my opinion, the schools ARE teaching kids about food- but the WRONG stuff! They are teaching our (my) kids to reward themselves with sugar and food that isnt healthy. They are at school starting at a young, impressionable age, and stay in it a looooong time, getting these same food messages. We as parents can do our bets, but those messages are still there, everyday the kids are in school. Its like they cant possibly think of any other reward for kids these days other than sugar and food.
As far as Im concerned, schools DO bear the weight of responsibility when it comes to the obesity epidemic of our children. NOT all the weight, as it is up to us as parents to start kids off right in life and keep trying to teach our kids right, but surely, the schools and our Govt system should be more responsible and pro-active and take far more action towards prevention and education. NOT punishment once the deed is done.