I have been close to people in that kind of situation and I am happy to answer.

We tend to see those questions from the nightmarish movie plot perspective in which someone is wrongfully institutionalized. Cuckcoo's Nest and all that.

Also many families want to have their mentally ill members with them. With proper medication they can live a happy life.

But there are terrible situations when they don't take the medication or there's an addiction problem.

There's very little nuance in these cases, really.