I don’t know what the alternative is, to be honest. We tend to have very limited discharge options at my work - family, a residential home, supported living (hens teeth, never happens) or live on their own.
There’s very, very little for adults who can live semi independently but need a carer coming in, who don’t have a (diagnosed, at least) learning disability. Add into that mix people who have committed a crime, or can’t abstain from substances, or have additional factors making them less safe to be around people … where do they go?
I don’t envy the people trying to sort that one out and get funding etc, it’s hell. From a family where a lot of us work in prison or forensic mental health, it’s all the exact same issues.