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I am totally oblivious of government(s) intention and have little to contribute to any such discussions.
Not a problem. In the US it's a pressing issue, because both States and cities are paid to support smoking, in multiple ways. For example the MSA payments are substantial (billions of $$) and provide a every welcome additional income for States needing that cash. The payments are part-based on stick sales volume - cigarette sales basically - and it seems rather difficult to believe that financially-strapped States will voluntarily agree to have that income removed. Most of the Attorneys General are therefore trying to get ecigs banned or restricted as much as possible, in order to protect cigarette sales.
It would be nice to think that government would put the public's interest first, and work for genuine public health; but I haven't seen any evidence for that in northern Europe, the UK or the USA. Indeed the opposite is the case: regional, national and federal governments are doing everything possible to protect cigarette sales. Realistically, they have to, or face real economic hardship.
Essentially, you can measure how hard governments are working to protect cigarette sales by the volume of rhetoric they utter about how bad smoking is and how they are working hard to reduce it: there is a direct relationship, rather than the inverse relationship you might expect. The louder the noise they make about reducing smoking prevalence, the harder they are paddling beneath the surface to protect it. There is no better example than the EU, the world's most successful corruptocracy and dearly loved by all governments who belong to it.
Just as the main function of the tobacco industry is now, principally, to act as the scapegoat for the entire business (and get well paid for it, of course)*, one function of the EU is to act as scapegoat for any government that needs to explain that they can't do anything about a problem because the EU make the laws. It's all, somehow, extremely convenient.
* This is true of anywhere such as the UK where tobacco tax revenues and other income channels and cost savings are a significant proportion of government income/spend. tobacco makes/saves the UK government at least £20bn a year even after all costs are paid. It's 2%+ GDP equivalent, and about two and a half times the cost of EU membership, for example.