I live in Indiana, and find it strange they have no recommended age for home alone yet, they do have an age requirement as to when a child can be left in the care of a sibling child, and that age is 11.
However, dissociative identity disorder is a severe form of dissociation, a mental process which produces a lack of connection in a person's thoughts, memories, feelings, actions, or sense of identity. Dissociative identity disorder is thought to stem from a combination of factors that may include trauma experienced by the person with the disorder.
The most common presenting complaint of DID is depression, with headaches being a common neurological symptom. Comorbid disorders can include substance abuse, eating disorders, anxiety, posttraumatic stress disorder (PTSD), and personality disorders.