 Critics of a duty to assist in suicide assert that the widespread moral acceptance of aiding others in suicide invites the prospect of a ‘slippery slope,’ wherein assisted suicide becomes so commonplace that individuals (particularly members of vulnerable populations such as the aged, the disabled, or socially marginalized populations) for whom suicide is not rational could nevertheless be susceptible to various forms of abuse, manipulation, or undue pressure, By giving license for others to assist in suicides, critics allege, we may unwittingly permit them to encourage suicides not because those suicides are in fact in the best interests of the individual in question, but because those suicides advance the interests of other people or of institutions.(Pabst Battin 1996, 145–157). Whether such ‘slippery slope’ worries are warranted is an empirical matter, and existing studies of societies that have legalized assisted suicide by medical personnel do not provide unequivocal support for these worries (Cholbi 2011, 148–157).