The only products advertised to young people like the ones I met in Leicester are UPF. This is for a simple reason: UPF is proprietary, so its manufacturers can generate a lot of money. People will pay a lot for a KitKat relative to its cost of production. No one else can really make KitKats, because Nestlé owns the recipe and the trademark and everything that creates the KitKat’s unique barcode that keeps bringing us back.