In the post I quoted you talked about how "happy" I was, etc. Stop being disingenuous and we can begin to have a healthy discussion rather than one filled with one-upping each other on straw men. "I'm sorry if that bothers you." Please. You do it in this post here where you start with how you never did it..."Please find me" where I said you would do nothing. The check is only one of a line of MY experiences, this one pleasant. I don't know LadyT's story and I did not say she was lying. I'm sure many have had worse experiences than mine. The false premise is in your mind.
I listed but a few of the reasons I question our system based on MY OWN experience, you reply with only the suggestion of a third party anecdote and nothing of your own. I mention waiting times, bankruptcy as a result of ill health, high costs, drug price variations between venues and you come back with nothing at all.
I support a single pay system as a result of my experiences and what I see and have learned from my children of other, what I consider better systems than ours. I'm sorry if that bothers you. Profit and the resulting greed do not belong as part of a basic right. That's an opinion, I have mine, you have yours, that's what makes horse racing.
("Adult" is as "adult" does.)

I personally support a reasonable test period either state-by-state, or regionally for less wealthy states, where we can test out different ideas and select the best idea to implement across the board. There is no reason we should emulate any other place when we can see and understand some of their problems and work to ensure those same problems are not repeated here, borrowing the good, avoiding the bad, coming up with wholly new ideas, compromises between parties in closer held areas, D states, R states each with their own plan set forth where we can see the results and find the best. This is the strength of the US.
Your anecdote was much like mine, an anecdote. I am unconvinced that we should implement that program because you had a good time while others aren't having such a good time. Waiting periods are very real, and not something I want to start with here. Age rationing like they do in Germany is also real and something, again, that I do not want to repeat. In France there are people who are officially "covered" yet cannot access the system because they cannot afford the high copay or the supplemental insurance that would set aside some of those high copays. Since we know about this, there is no reason that we cannot see if a different system could fix that as well.
There is no reason to rush into an untested crappy system, or even an untested 'good' system, that will come with easily foreseen as well as unforeseen problems when we have the ability to test and figure out a system that will be the best of the best. I think we should lead, not follow, by not acting in "crisis" mode for every single thing that comes along and saddling ourselves with a system we will never get rid of as we all know that there is nothing made by mankind more infinite than a government program. By letting them convince us of the "crisis" we too often let our government get away with making stupid laws with foreseeable problems (drug laws are a good example). We can make the best system available on the planet, but instead what we'll get is just another wholly implemented infinite program that will need constant "fixing" in the future and will never be adequate enough to satisfy.