I agree with what you say here, My daughter, now in her 20's suddenly told me I had been a bad mum because I hadn't had biscuits and crisps in the house, so had never explained that they were bad for her. Consequently, when she went to friends house she ate as much as she possibly could without realising that they were not good for her. We need to talk more about foods and about what the shops sell and why they sell what they do!