Is there a burden on society to “protect” adults who are planning to end their own life on Earth? That burden is manufactured and morally deficient. That burden probably ultimately prevents us from actually reducing suicides, and probably worsens suicide rates since suicide prohibitions make it not possible for many individuals to talk about suicide openly and honestly with any potential helpers in private settings without knowing that they may be victim to psychiatric coercion if they speak openly and honestly. Read the book Suicide Prohibition: The Shame of Medicine by psychiatrist Thomas Szasz.
Suicides have increased. Are psychiatric drugs not working? Maybe the drugs are actually worsening the problem. The book Anatomy of an Epidemic by Robert Whitaker explains this idea in depth.