I didn't note a key condition- that there's some near certainty they won't ever recover. Regardless if they are awake in the coma or not. Here's an issue. You

I didn't note a key condition- that there's some near certainty they won't ever recover. Regardless if they are awake in the coma or not. Here's an issue. You said it should be up to the person. Sure but it's not boolean. Assume they can't communicate and didn't provide instructions like a DNR. That's not yes or no. As for the family they are bias in this situation. They reasons are emotional, valid yes but meh. If the family wanted to keep them alive they could pay for the treatment but that's almost never the case. Insurance is going to cover it and that's really just spreading it around to the public. Assume the person is in a coma, no idea if they are aware, 99% chance they won't ever wake up, family isn't paying with cash. If they are awake that's torture for the next 20 years, though to be honest I'd like to hear about it from someone who has gone through it. Also, the family doesn't move on, it's not a thing in their life, yes they want it but is this all for the best?