Not sure its ever been tried. I know that millions of people take care of their own health insurance and retirement without the govt providing it, so it must work. Im not saying the local govts should even be in charge of anything, just that the federal govt shouldnt.

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"To take from one, because it is thought his own industry and that of his father has acquired too much, in order to spare to others who (or whose fathers) have not exercised equal industry and skill, is to violate arbitrarily the first principle of association, "to guarantee to everyone a free exercise of his industry and the fruits acquired by it."

-Thomas Jefferson

What's it?

Anyway, I understand where you're coming from when you say that the federal government shouldn't be involved in health care. I'm personally not sure of whether it should or shouldn't be myself.

__________________
No man is an island...
Each man's death diminishes me,
Because I am involved in Mankind.
And therefore, never send to know
For whom the bell tolls;
It tolls for thee.
—John Donne

It is non federal social programs. You asked if there was proof state govts could do better than federal govts. There is proof that individuals can do better than federal govt, which is one step better.

__________________
"To take from one, because it is thought his own industry and that of his father has acquired too much, in order to spare to others who (or whose fathers) have not exercised equal industry and skill, is to violate arbitrarily the first principle of association, "to guarantee to everyone a free exercise of his industry and the fruits acquired by it."

-Thomas Jefferson

The goal of state and federal governments though is to equally provide all of their citizens with these benefits. The goal of the individual is to simply provide for him or herself and family, so the evidence doesn't really apply.

__________________
No man is an island...
Each man's death diminishes me,
Because I am involved in Mankind.
And therefore, never send to know
For whom the bell tolls;
It tolls for thee.
—John Donne