Universal Healthcare is when a society is actually "rich" or "wealthy" in terms of truly having more than enough resources to perform essential care wholesale at no cost to patients,
and after that, when society chooses to prioritize the health care of all its citizens high enough to give equal care to all.
This doesn't usually happen, even in societies where the consistent waste of resources exceeds the total cost of universal healthcare.
Considering the resource shortage or surplus, when healing treatments are not denied to any needy members of society, that could be a fundamental marker of civilization, and an obvious measure of which societies are more advanced and which are more retarded.
and after that, when society chooses to prioritize the health care of all its citizens high enough to give equal care to all.
This doesn't usually happen, even in societies where the consistent waste of resources exceeds the total cost of universal healthcare.
Considering the resource shortage or surplus, when healing treatments are not denied to any needy members of society, that could be a fundamental marker of civilization, and an obvious measure of which societies are more advanced and which are more retarded.