>>15906289"Free" healthcare is basically just private insurance but the amount of premium you pay is related to how much money you earn and not how likely you are to get sick. So it subsidies being poor and fat and punishes you for being rich and healthy.
Most countries I know of pay their healthcare bill with regressive taxes such as sales taxes to mitigate this. They also regulate food a lot more to force people into being healthier to save money.
If you country has a semihealthy population, decent bureaucracy and has a balanced budget it isn't the worst thing to spend money on.