I don't like this word, but "morally" you should follow their wishes, IMO. Actually doing it knowing they will die from something preventable would be agonizing, IMO.

I'm not sure how a medical directive works in your state, but I don't think a directive as you suggest is legally binding here in Jersey. The directives we've executed spell out our wishes to use the most aggressive treatment, no matter what the risk, if the condition will result in permanent impairment if treatment is not rendered, and to cease life support and all other drugs other than pain relief in the event that the brain and body are so injured that we can't sustain life on our own (with little or no hope that we ever will again).

I've been very explicit to my wife and kids that I don't want to be a living shrine to anyone. We all accept that death is just as natural a part of life as birth is.

In the end, we should all want our loved ones to be happy. If their happiness is in opposition to our own, so what?