Is Demand Really Dynamic?

Stephanie: I have to say that habits are hard to break, but not impossible. And if a kid like me who grow up with arse cola, doritos, boloni sandwiches on wonder bread and tasty cakes is like 80 % of her calories can eat a pretty healthy diet these says, it just suggests to me that hope is not lost, right? That demand really is dynamic. Demand can change. And it's not easy, but it's possible.