who can be defined as a vulnerable person
Vulnerable adult As defined in the psychology, sociology and social work fields, a vulnerable adult is any person who lacks the absolute most basic (as distinct from mid-level or typical level) human life skills. A vulnerable adult is unable, rather than unwilling, to properly learn or properly maintain these skills, and is usually completely without, and unable to obtain, any family, friends, acquaintances or other assistive persons in their lives to offer education or assistance in these areas (see: abandonment). To be classed as vulnerable, the adult's circumstances must be unable to be altered or improved by the adult's own individual actions without direct assistance from a more typical adult. The vulnerable adult must also be shown to be, on some significant level, a risk to him or her self if assistance is not provided.
Dissociative identity disorder Rates of diagnosed DID were increasing, reaching a peak of approximately 40,000 cases by the end of the 20th century, up from less than 200 before 1970.[20][10] Initially DID along with the rest of the dissociative disorders were considered the rarest of psychological conditions, numbering less than 100 by 1944, with only one further case added in the next two decades.[11] In the late 1970s and 80s, the number of diagnoses rose sharply.[11] An estimate from the 1980s places the incidence at 0.01%.[20] Accompanying this rise was an increase in the number of alters, rising from only the primary and one alter personality in most cases, to an average of 13 in the mid-1980s (the increase in both number of cases and number of alters within each case are both factors in professional skepticism regarding the diagnosis).[11] Others explain the increase as being due to the use of inappropriate therapeutic techniques in highly suggestible individuals, though this is itself controversial[39][43] while proponents of DID claim the increase in incidence is due to increased recognition of and ability to recognize the disorder.[10] Figures from psychiatric populations (inpatients and outpatients) show a wide diversity from different countries.[74]