The problem is that any intervention has to be sustainable. If your friend is currently not capable of independent safe living then the question becomes what supports are available for him.  Misdiagnosis can be a problem mainly as it can lead to mis-treatment, but if the hospital can provide a safe environment to allow his own powers of self-recovery to kick in, it may not do much harm.  The main thing is that he has people (like you) who can understand him on his own terms, and who can act as an advocate and negotiator on his behalf with the powers that be. You could be his bridge to sustainable living, but do you have the time, presence and resources to commit that much?

Index of Frank's Diaries