Euthanasia can be classified as voluntary and involuntary. Muscle action can be classified as being either voluntary or involuntary. International voluntary and charity organisations have assisted. This rule should be applied to rectify both voluntary and involuntary transactions. A distinction was made between voluntary and involuntary prostitution. Some attempt was made to distinguish between voluntary and involuntary prostitution. Few sources enumerate the entirety of what constitutes voluntary and involuntary conduct. For Aristotle, the elements are used in order to distinguish voluntary or involuntary action. Compliance rates with voluntary open access policies remain low. Singer classifies euthanasia as voluntary, involuntary, or non-voluntary. Nerves move muscles in response to voluntary and autonomic (involuntary) signals from the brain. Afolami is very active in supporting charities and other voluntary groups. Anarchy is primarily advocated by individual anarchists who propose replacing government with voluntary institutions. Women are eligible for voluntary military service. The book preached the importance of forming voluntary associations to benefit society.