The problem with euthanasia is that the certainty of it defies all human survival instincts so it’s psychologically very difficult to press a button that ends our existence. What would be better if you could legally hire a service, while healthy, that would sneak up on you and kill you painlessly if you were in a terrible condition with nothing but pain and misery to look forward to. You could cancel them at anytime, but if you didn’t, they’d bump you off mercilessly when you needed it.