I am totally in favour of this- and very lucky that I live in a country were such wills are properly recognised and legal, and go much further, allowing you to make a request to die if you feel the pain is too much. But even here, you still need to have all your mental faculties at the time of the decision, and not only at the time of making the will. With Alzheimers and senility, it still means people have to 'exit' much earlier than wished, just to make sure you are still considered compus mentis.
Fruit flies - help needed please.
Army horses loose on London streets
Have any of you got all electric cars? Pros and cons please.