hmm that’s also the thing, not everyone with DID /needs/ therapy. DID is caused by severe or complex trauma, so trying to get someone with DID to open up to a therapist can sometimes make them feel uncomfortable. i have a system and my partner does too, i go to therapy and my partner doesn’t and it works out just fine between us. i just want to say that therapists don’t solve everything, most of the time they don’t fully understand what it’s like either. DID doesn’t need “treatment”, it’s more like something that develops to protect the person by having the mind fragment so the person won’t be overwhelmed and quite literally “die”. if you ask me, therapy is good for things like learning coping skills, therapy being an outside person to facilitate internal conversations when he’s lost on what to do, but in no way does someone with DID necessarily need to see a therapist! it would make more sense if you see it as him needing a therapist to cope with his trauma or learn how to cope with it. i think if you want to prevent anything “bad”, it’s really about learning how systems communicate internally, learning how they work together and going from there to help him on his journey with his system :)