One issue I haven't seen tackled hard enough about young teens self-diagnosing themselves ( & why I, as someone who stands for educated self-diagnosis, can agree with those against ) is how powerful labels can be. For something as heavy as a PD, I've yet to see it realized that it's a comfortable box into stunting & molding your emotional, mental, and ego growth.

You have this label to box your behaviour into, a community to fall back on, possible explanations for disorganized behaviour. & then, say, for example, if a teenager is no longer in an environment that demands those traits, & no longer exhibit the criteria to meet diagnosis into their adulthood ( e.g. to paraphrase, " a pervasive, persistent pattern of behaviour across multiple settings. " ) can it be so easily accepted that they're no longer disordered, or " worse " ( because their identity has been attached to being disordered ) didn't have it at all?

I apologize for the yap session, & obviously there's so much more nuance to this than i can hope to describe in this length.

TL;DR : I haven't seen anyone mention how young teens can attach their identity to being disordered &, when that's in the context of a personality disorder, can stunt/mold ( if unconsciously ) their sense of identity further.