Wow! That's terrible. My kids never had pop touch their lips till they were 5 (thanks to a birthday party). Now that they are 7 and they hate the stuff. They say it's too fizzy and hurts their mouth, they are happiest with a glass of water and I'm happy to leave it that way.
I don't understand some people, it takes no more time to prepare healthy food as it takes to prepare unhealthy food. Even if you you're in a rush, it's just as easy to buy something good for you as it is to buy something bad for you.
Oh well...