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^ When the grossly overweight 60yo smoker pays the same amount as a health-conscious 30yo, we have a problem.It depends on what your goals are. The reasoning behind why the ACA ("Obamacare") is the way it is:
> Suppose you want to make health coverage available to everyone, including people with pre-existing conditions. Most of the health economists I know would love to see single-payer — Medicare for all. Realistically, however, that’s too heavy a lift for the time being.
> For one thing, the insurance industry would not take kindly to being eliminated, and has a lot of clout. Also, a switch to single-payer would require a large tax increase. Most people would gain more from the elimination of insurance premiums than they would lose from the tax hike, but that would be a hard case to make in an election campaign.
> Beyond that, most Americans under 65 are covered by their employers, and are reasonably happy with that coverage. They would understandably be nervous about any proposal to replace that coverage with something else, no matter how truthfully you assured them that the replacement would be better.
> So the Affordable Care Act went for incrementalism — the so-called three-legged stool.
> It starts by requiring that insurers offer the same plans, at the same prices, to everyone, regardless of medical history. This deals with the problem of pre-existing conditions. On its own, however, this would lead to a “death spiral”: healthy people would wait until they got sick to sign up, so those who did sign up would be relatively unhealthy, driving up premiums, which would in turn drive out more healthy people, and so on.
> So insurance regulation has to be accompanied by the individual mandate, a requirement that people sign up for insurance, even if they’re currently healthy. And the insurance must meet minimum standards: Buying a cheap policy that barely covers anything is functionally the same as not buying insurance at all.
> But what if people can’t afford insurance? The third leg of the stool is subsidies that limit the cost for those with lower incomes. For those with the lowest incomes, the subsidy is 100 percent, and takes the form of an expansion of Medicaid.
* https://archive.is/HzS1G / https://www.nytimes.com/2017/07/10/opinion/obamacare-repeal....
* https://thehealthcareblog.com/blog/2023/02/15/all-three-legs...
The goal of the ACA in the US was getting closer to universal coverage, and that means 'subsidizing' bad behaviour to a certain extant.
Certainly smokers and such should practice more (so-called) 'personal responsibility', but there are a lot of situation where the pre-existing condition is not smoking or other lifestyle choice, but something genetic / congenital. So unless we want to get into (social) Darwinism and leave those folks on the sidelines, the lifestyle folks can end up coming along for the ride when society decides to protect other non-lifestyle pre-existing people.