Should people with mental illness be able to commit themselves to future involuntary treatment?

Self-binding directives, which allow people with mental illness to dictate a compulsory treatment for themselves in the event of a future episode, could give them a degree of control and safety in decision making, say Tania Gergel and Allen Frances. But Arun Chopra and Theo Van Willigenburg argue that this takes advance planning too far and could worsen inequalities.