We also have a very healthy & well priced canteen so I have no worries ordering my kids a rainbow wrap (grated carrot, beet root, diced tomato & shredded lettuce) for $3!
No juice boxes at our school for Kindy kids, just water. Juice boxes are full of sugar, I can understand the milk as it's got calcium & protein and can actually satisfy a hungry tummy at recess time. I feel sorry for any teacher who has a class full of children on a juice box sugar high lol.