In other countries with universal healthcare, the law says that you will get only "medically necessary" treatment, amd everything else needs to be paid out of your pocket - and in these countries, no private insurance usually exists, so have fun with that.
Another point is quality of hospitalization care, again - there are less than 5 countries in the world where you'd get the same thing as in the US. In other countries you will share room with 5 other people, and be aware that usually at least one family member per patient is always present. Treatments such as colonoscopy are done in your room, btw. There usually is just one male and one female toilet and shower per ~10 rooms, of course used by the family members as well. The food is literally uneatable 99% of the time, 1% of the time you're lucky and it's plain bread and tea (nothing to screw up on that). Prepare yourself to be screamed at regularly by doctors and nurses. Prepare yourself to be bellitled at every opportunity. And prepare yourself that your family members might die because noone listened to them, and the only compensation you can get is the sentence "well, that's just the system, the government really didn't want that" - correct, no monetary compensation, no fines, no prison.
Did I mention that there is no way to go private other than paying out of pocket, and of course who would run a medical company in a country with universal healthcare?
Source: my whole life in a "universal healthcare" country.
Edit: Let the downvotes flow, I just stated my experience, definitely a downvote-worthy comment, lol. Dumbass me thought we would discuss.
Seems interesting tho. Almost every time I write my experiences with universal healthcare, I'm immediatelly (within 5 minutes) heavily downvoted, without any discussion. Hard denial? Universal healthcare definitely helps pharma and medical companies (they can overprice a lot, just like with any other governmental project). Lobby?