Majority of British doctors favor withholding medical services to smokers and fat people. The battle for a single payer medical system is not about providing medical care, it’s about control, just as warming alarmists aren’t really worried about polar bears.
But it is easier to promote behaviour desired by the state when a population lives on state handouts. And for states that might want to influence the behaviour of their citizens — their resource consumption, their carbon footprint, their moral and ethical beliefs, or their attitude toward the state — this could be an attractive proposition. It might cost a lot to run a welfare system, but it brings a lot of power to influence citizens.
And increasingly throughout the Western world, citizens are becoming dependent on the state for their standard of living. In the UK, 92% of people are dependent on the socialist NHS for healthcare. 46 million Americans receive food stamps. That gives states a lot of leverage to influence behaviour. First it may be used in a (relatively sensible) attempt to curtail smoking and obesity. Beyond that, the sky is the limit. Perhaps doctors or bureaucrats may someday suggest withholding treatment or dole money from those who exceed their personal carbon or meat consumption quota? A tyrant could even withhold welfare from those who do not pledge their undying allegiance or military service to a regime or ideology (it happened many times last century). An underclass of rough and hungry welfare recipients is a fertile recruiting ground for military and paramilitary organisations (like the TSA).
With the wide expansion of welfare comes a lot of power, and the potential for the abuse of power. Citizens looking for a free lunch or an easier world should be careful what they wish for. Welfare recipients take note: you depend on government for your standard of living, you open yourself up to losing your liberty.