Thing is, unless industry are on the hook at both ends, they are incentivised to discourage, find ways around, or market against it. So I'd prefer manufacturer

Thing is, unless industry are on the hook at both ends, they are incentivised to discourage, find ways around, or market against it. So I'd prefer manufacturers responsible for every last cent of running a full-scale return and reuse programme. If that makes fizzy drinks more expensive, well, I'm not sure that's a bad thing either. Externalities are what started us on the way to this mess in the first place.