Sugary drinks are the absolute worst. But it's up to the parents to completely forbid it in the house. Don't let your kids get used to it. Tastes can be controlled, the way you eat, the way you cook. We never had coke or any other soda in our house, and I don't have it in mine either. Guess what? No one wants/craves it. It's that simple.  We can't control the environment outside, but we can have some influence at home if we make the effort. At least one can try.