“my question was if the government can take money from one person to pay the medical bills of another person.”
Yes I got that.
I think the answer is obviously yes. (though not from “one person” rather from society).
My point is that you set up the question to bias agaisnt Mr B, as if its all his fault and if only he never smoked and worked out more, he would not have had Lung cancer. while Mr A is a hero. Of course that was an question for you to answer.
The reaility though is not like that. S that is my question to you. Should the government have society step in to help Mr A when is insurance doesnt come through (or force his insurance to come through) ?