I've always been skeptical of the idea of third-party-payer systems of any kind because it seems to me that wherever you can offload the burden of risk to someone, you're much more likely to make poor choices in the moment, both personally and financially.
For example, imagine that we now had "Grocery Insurance"? Or "Home Entertainment Insurance"? -- where you pay a fixed fee to a third-party, and they give you a card that authorizes you to purchase far more than you pay in fees each month, every time you step into the store. Suddenly, that nifty pair of wireless headphones, the extra big bag of fritos, the "Law&Order" Gold Edition DVD box set, two bottles of syrup instead of one, and the eggos instead of ingredients for pancakes... all suddenly start showing up in your shopping cart on a regular basis, and over time, even more as benefit levels increase.
The DRO model, I think, would be great way to manage that problem, since premiums and benefits are going to be much more commensurate with your spending habits, lifestyle, risk tolerances, and reputation rating. But that's only possible in the absense of government. Coercion is the single greatest corruption of decision-making. Enabling the deferal of risk is a pale secondary problem, by comparison...