To me, a better remedy would be for people to carry around emergency documentation cards/chips that could clearly identify any allergies, medical conditions and visitation/power of attorney/do not resuscitate information. That way if you're rendered incapacitated, your wishes would be documented and could override whatever default policy is in place.
With all my medical issues I may look into an implanted chip. But in today's US that may not help first responders, more a hospital matter if even they have the ability.
I recently had myself tattooed with a medical alert symbol, along with the word "Epileptic". I posted the pic here on RJ. On the underside of my wrist, where a first responder would be most likely to find it while taking my pulse.
I was hesitant to get inked, but since my epilepsy is for life, I thought a discreet medical tattoo would be acceptable. I showed it to my primary doctor a couple of weeks ago and he thought it was a great idea.
When my husband & I (catch that, SB? ) travel we carry portfolios prepared by our attorney. His goes in my luggage, mine goes in his. And it contains all the legal documents we need in case of a medical emergency.
Plus I've had all those documents scanned into every hospital we use, every doctor & clinic where we go. If you access his name at any area hospital we use you'll see my name listed as "Next of Kin". If you access my name you'll find his name listed.
We never have any problems, no questions. I set this up over 7 years ago, before this Supreme Court gay marriage ruling, and before President Obama's Executive Order to require medical facilities that receive Federal benefits to acknowledge LGBT relationships. (And yet there are guys here who continue to insist that Obama has done nothing for LGBTs! Compared to whom? Bush???)