"This is likely because young people's eating patterns are influenced by many complex factors, and the family environment plays only a partial role. More attention should be given to the influence of the other players on children's eating patterns such as that of schools, the local food environment and peer influence, government guidelines and policies that regulate school meals, and the broader food environment that is influenced by food production, distribution and advertising." He added, "Parents need to be better empowered to be good role models and help their children eat a healthy diet."
http://www.sciencedaily.com/releases/2010/12/101208142257.htm