Thomas Shey
Legend
This can be translated to mental issues as well. Someone can be on the autism spectrum, but not so far along it that they can't figure out strategies to cope. Someone can suffer from depression without being suicidal. And so on. It's still worthwhile to help these people, and perhaps we should make sure to expand access to mental health treatments and reduce the stigma associated with it.
This is more or less my view, except I can see some benefit to trying to narrow down a possible cause, because it might lead you to some useful coping strategies. There are cases of mild autism that can look a lot like some forms of ADHD, and seeing if you can figure out which it is you struggle with (if not, of course, both) can be helpful.
Of course sometimes its just a case of "Huh, wonder if that's what that's always been about?"
(I should note I'm also kind of U.S.-centric in my view of this, where in some socio-economic spheres getting the money and time to even get cursory mental health treatment is non-trivial, and the stigma of doing so is a lot more pronounced--even among the people who should be getting it).