My kid eats well at home, but at school...

My toddler eats well most of the time. He is ok with eating vegetables and fruits. Actually sometimes prefers them over crackers etc. He also drinks water instead of juice every time.

I noticed at pre-k, they always offer snacks at snack time like oreos, chocolate chip cookies or chocolate cookies dipped in sweet cream. They also offer cupcakes or crackers like cheez-its or Ritz. I am not "anti" any of these, but to be eaten every day of most of the week, seems like a lot for a little toddler body. Not to mention how bad this stuff is for their teeth.

I know the reason the school offers these snacks is because they are easy to store and require no refrigeration. But there are so many non-perishable alternatives:
Natural granola, whole grain crackers and soynut butter, applesauce, unsalted pretzels, nut-free trail mix!
I know the ones I listed above are not THE healthiest, but I am sure they are a better alternative to eating oreos for snacks- once or twice a week.

I'm a new mom so, I don't know if I am being way too picky or if I should be concerned. I mean, I don't eat the stuff they eat because I know what it the negative affects it can have on my body. I have family members with diabetes and other health conditions related to over eating or eating foods high in fat and sugar. Why would I give that stuff to my toddler?

I know it's all about portion control and eating it once in a while. But these foods are being consumed most of the week by these kids.

I opted out of the snack program because I feel like "I should only worry about my kid." I have now started to pack healthy snacks for my kid. You know what? He is fine with that. I pack him things like blueberries, yogurt, carrots, cherry tomatoes, cheese etc. He LOVES IT!
But now I wonder if I should stand up for the other kids too? Or should I keep my trap shut and again, worry about my own kid?

If you are a parent, what would you do?