I'm glad a Public Health organisation has finally recognised e cigarettes as a positive solution, and it's being talked about in big publications! Check out the Guardian:
Promote e-cigarettes over harmful tobacco smoking, say experts | Society | The Guardian
I think it's a good thing to ban smoking, but then again I'm not a smoker. Second-hand smoke is harmful, and you're right adults are aware of the dangers, so why do they continue to smoke? Smoking is responsible for 86% of all cases of lung cancer in the UK. CANCER!
I'm all for consumer choice, but I think the majority outweigh the minority when it comes to tobacco, and everyone would be better off without cigarettes. Why doesn't everyone quit or vape?