Milk Sugar Content (per 8 oz. serving): 24 grams sugar (12 grams natural sugar, 12 grams added sugar)
According to https://www.nhs.uk/live-well/eat-well/food-types/how-does-su...:
Adults should have no more than 30g of free sugars a day,
(roughly equivalent to 7 sugar cubes).
Children aged 7 to 10 should have no more than 24g
of free sugars a day (6 sugar cubes).
So one small carton they have at school has 30% of an adult's daily intake of added sugar.> As for chicolate milk: there's probably as much added sugar in it as in a can of Cola.
Your own follow-up comment proved this to be false. No need to dig in further.
And then my point was about the huge amount of added sugars.