Yeah it's been going on for years that debate, though I always wonder about the enforcement of such a policy, who gets to decide or what would be the benchmark for healthy living? would a doctor get to make a discretionary call for each patient or would a framework of guidelines be created? so if someone was over a certain weight, or if someone had noticeable damage/symptoms of excessive alcohol?
The issue with free universal healthcare is the issue of taxation, that is what funds it, so it's not going to be a vote winner telling people they have to pay tax and then pay for healthcare, a system of buying into health insurance would be a compromise but then how much annual revenue would the government loose if we all paid less in tax and chose to insure ourselves, like a more US system of things.
The other issue is it might cause a drop in revenue for the companies selling alcohol, as with tobacco, the industry has taken a slump since "quitting smoking" campaigns have been in existence, the new thing is now creating and promoting e cigarettes to boost profits.
Overall I have faith in the alcohol lobby that they have enough money and weight to throw at this to ensure it's place in UK culture is alive and well!!
