You’ll go to jail if you try to form a health care system outside of the government’s though.
Private healthcare isn’t illegal in Britain. Frankly, whilst the NHS has its fault, it does at lest give ordinary people on low incomes access to healthcare without going bankrupt or having an insurance company that refuses to pay for lifesaving treatment. One of the most disgusting things I ever witnessed when I lived in the US was a husband and father neighbour who had a heart attack whose insurer refused to insure him for two years afterwards, meaning that if he had another heart attack, his family would have had to sell their house and they would not have been able to access non emergency treatment. Our family got great treatment because my Dad had a good job and top level insurance, but regular American joes where stuffed if they ever got seriously ill. There’s a lot I admire about America that you do better than US, but healthcare provision ain’t one of them, unless you are rich, in which case you are alright Jack...