Only read some but the obvious one is the health care provision in most Nordic countries, and as for many other European countries too, as here in the UK, that people contribute (via taxes) to a national health care scheme (the National Health Service here) and such that anything required as to health care is provided free when required, no matter what the cost. Although the options are usually there so as to seek other sources of such.
The author seems to rail against the insurances aspect of the USA, and as to many just not managing through this - due to various circumstances, like insurance being tied to one's job and such things. And for such a wealthy country like the USA this just seems such an anomaly that many will have financial issues over their health or health-related issues (like childbirth even). Not that our NHS doesn't have issues too, and perhaps down to underfunding by successive Tory governments who might want to go the USA route. But the evidence, as to happiness, education, and such seem to support the author's point as to the USA having it wrong - and possibly because the country tends to be more right-wing and/or religious in nature so as not to go another route.
If one can afford private insurance in the UK, many will do so and often get better treatment but seemingly the majority, as in most Nordic countries, will still prefer to have an NHS system than caters for all regardless of their circumstances. And as to which I would heartedly agree.