That is true - although many Boomers have articulated there desires in written documents - something that was missing in the Schiavo case (and was the real underlying cause of the court conflict). With adequately drafted living wills, the Schiavo case will not occur - whether you like the idea of living wills or not.
Actually, you're wrong. There was a case last year - an elderly woman had a living will and her grandaughter got a judge to order her starved and dehydrated. Fortunately her neice intervened. The woman was NOT happy when she learned what her darling grandaughter had done.
Others here on FR will know more details than I.
Moral of the story: your living will may not insure your wishes when your children and grandchildren want to get their hands on your money.
Another moral: spend your money now or let somebody else spend it later.