Fair enough, Mamya, but what a thing to be suggesting to perfectly healthy 76-and-upwards! It is calculated to make one introspective and think about the value of one's life and if in fact you are a burden in some way or another. This could tip some people who may be depressive, lonely and with the usual aches and pains into agreeing a DNR statement and then they could later have a heart episode but be more positively minded and have their statement waved at them.
I think it is the start of a very slippery slope, myself. Different if you are talking to a person whose life is likely to be limited and painful. Mr J2 is now 82 and, of course, has a few problems (some would be considered serious in this context, like heart things, but he is fine and we walked 5 miles the other day)- but he intends to go on forever, or at least until 100. Only hope I make it with him!
I really tend to agree with OP that it is moronic (whilst suspecting that it is a calculated shot across the bows to gauge reaction).