and
> Why would single-payer involve people losing their current insurance? As
> far as I know, that was a peculiarity of Canada's system; it's not true
> of the British NHS, or in France or, as far as I know, the rest of
> Western Europe. The important thing is to force everyone to buy into the
> government-provided health care system; allowing people to buy private
> insurance as well doesn't conflict with that.
The coercion part is on the individual's payment side. Nothing forces the Gov to give you great service. If the plan is good, you shouldn't need coercion.
And: sure you could always pay twice for insurance, once through taxes and again for a separate private plan. This is not likely to be more appealing than being obliged to enroll in the Gov plan, unless you've got lots of dough.
The main drawback of a no-mandate plan is the free-rider problem -- people waiting until they get sick before participating in the program. But there are ways to deal with this short of mandates.