Sugar Intake of Children

I watched an powerful Ted Talk on the sugar intake of children. I used to see posters in my schools about the level in of sugar in our drinks and that water is the only healthy drink. Sometimes, all my friends and I brought juices for lunch. Was it lack of education, love of parents, convenience or just plain advertisement and marketing of powerful corporations? The way Oliver shows the amount of sugar we eat in 5 years is amazing. I will never forget.