I absolutely disagree.
If you would not want any type of life support withdrawn from you if you were incapacitated, you MUST complete a living will. Otherwise, your family members will be making that decision. They may be under significant pressure from doctors and/or the insurance company to yank your life support. They NEED to have your wishes in writing.
A living will is also important if it is acceptable to you only to withdraw certain types of life support, i.e. a respirator, while other types, i.e. hydration, should not be withdrawn.
A living will is especially important for those who don't want any type of life support (even dialysis), as family members would have a difficult time carrying out such a verbal instruction should you become incapacitated.
In short, I don't see anyone who would not be better off with a living will.
I couldn’t agree more with you, and couldn’t agree less with the article in question. A Living Will codifies your wishes and the wishes of your family.
You didn’t read the piece, I guess. What is needed is the substitute Patient Protection document. In some states a living will, just because it exists can have interpretations in law that trump what you may think you are authorizing or not authorizing in that “Living Will.”