When a person loses his sight, no one blames him for being able to only see shadows and not the sharp lines of whatever he is attempting to see.
Mental health patients have just as much of a vision problem as they have a mental health diagnosis. They see the world through tinted lenses.
To keep patients safe, hospitals and clinics rely on anti-ligature hardware. Someone struggling with depression and suicidal thoughts walks into a typical hospital room and sees dozens of dangerous items.