I think the difference here is that I don't see education and internalising costs as protecting us from ourselves in the sense given by the OP (that even knowin

I think the difference here is that I don't see education and internalising costs as protecting us from ourselves in the sense given by the OP (that even knowing perfectly the costs, we humans will still make the wrong decision and so need further protection from ourselves). The effectiveness of the campaigns shows that given enough information we can in fact change our behaviours without needing to resort to prohibition, which is probably how I should have phrased my first response and skipped all of the rhetoric.