What we know about the science is that exposure to advertising for children really is different based on their developmental stages. We know that, for example, the youngest of children cannot even differentiate between what advertising is and what a television program or a YouTube video might be. As they get older, they have the ability to differentiate, but they don't necessarily understand how that might be influencing their behaviour. That's one part of it.
We know that exposure to advertising also affects attitudes in children's preferences, food choices and consumption patterns. That's part of the exposure part of it.
Obviously, obesity, healthy eating and healthy living are multifactorial. That's why we have a suite of policies to make sure that children are able to get the nutrition that they need and that they're not overly influenced or exposed to advertising that potentially could lead them to making poor food choices.
Then there's what we call the “pester power” of children, whereby they are being directly marketed to and that translates into specific requests to parents or caregivers.