I was fine with the theory personality characteristics are so highly variable under the throes of adolescence that it is a practical impossibility, if not clinically inappropriate, to diagnose  such disorders until the age of 18. I'm aware that antisocial personality disorder hasn't changed.Too many practitioners see a personality disorder diagnosis and turn off their brains to the likelihood of a mood, anxiety, or psychotic disorder.Specifically, why is the new criteria considered better than the old criteria under DSM-3 and -4?
Why did DSM-5 and subsequently ICD-10 allow personality disorders to be diagnosed in children
personality disorder;diagnosis