[rounce]

Sadly for people who are like the man you mention, "a few more weeks" is in actual fact a lot longer. The problem is more likely to be the lack of a proper support network to help this individual care for themselves in the long-term, as well as helping maintain routines and structure in their life. This is not something that can be done in an environment as tightly constructed as a mental institution. It requires a combination of professionals and friends on the outside, who are able to give this person round the clock support to help deal the the complexity of life in a uncontrollable environment.

Unless we (as a society) can find a way to provide this for those who have been pushed to the fringes of reality, there will still be a significant portion of people pushed into the Treat-Release-Repeat loop for years to come.