Making it optional doesn't solve the issue since it means those who choose to consume resources eternally at the expense of others are rewarded. In the meantime

Making it optional doesn't solve the issue since it means those who choose to consume resources eternally at the expense of others are rewarded. In the meantime, those who choose to do the "right thing" (dying a natural death) would be punished: indeed, dying in a world where others live forever seems far more painful than dying where nobody has a choice.