What obligation does the grocery industry have to help parents to healthily feed their children?

Parents themselves are eating badly. Their own behaviors translate into bad outcomes for their children.

When you send poorer people into the store for groceries, are they more likely to buy the lower-cost food that's pleasing to the child, or the healthier foods that are more expensive?

Fixing the teeth is treating the symptoms. The disease process still exists.

If you give a child juice with a meal, give them water in between meals.

When television producers say it is the parents' obligation to keep children away from the tube, they reach the self satire point of warning that their own product is unsuitable for consumption