[Maritime Q-Scout]

Here's the thing. It's NOT making smoking illegal. It's already illegal, NZ is just keeping it that way. If you can legally smoke, nothing changes. If it's illegal for you to smoke. Nothing changes.

Will there be an increase in the black market? I'd be shocked if it didn't. However, will the detriment of the black market increase be offset by the benefit of less power smoking, and having a healthier population? Probably.

Just because there's a cost, doesn't mean the cost outweighs the benefit. You need to run the analysis.