Well, it's in the best interest of society as a whole to keep people in good health. For many reasons but in particular public health, because if people don't g

Well, it's in the best interest of society as a whole to keep people in good health. For many reasons but in particular public health, because if people don't get vaccines or don't cure infectious diseases it can spread and potentially affect everyone. This is why in France we have universal healthcare, that goes beyond legal residents but also benefits illegals (with AME, Aide Médicale d'État).