 Next, it is hard to see why moving from voluntary to non-voluntary euthanasia is supposed to be psychologically inevitable. Why should those who support the legalization of voluntary euthanasia, because they value the autonomy of the individual, find it psychologically easier, in consequence, to endorse the killing of those who are not able competently to request assistance with dying? What reason is there to believe that they will, as a result of their support for voluntary euthanasia, be psychologically driven to endorse a practice of non-voluntary euthanasia?