All the following are characteristic features of separation anxiety disorder EXCEPT

(E). Separation anxiety disorder (SAD) is one of the most common childhood anxiety disorders with a prevalence of 3.5-5.4%. Separation anxiety behavior is developmentally normal when it begins about 10 mo of age and tapers off by 18 mo. By 3 yr of age, most children can accept the temporary absence of their mother or primary caregiver. SAD is more common in prepubertal children, with an average age of onset of 7.5 yr. Girls are more commonly affected than boys. SAD is characterized by unrealistic and persistent worries about separation from the home or parents. Numerous somatic symptoms and complaints of subjective distress. Symptoms vary depending on the child's age; children younger than 8 yr often have associated school refusal and excessive fear that harm will come to a parent; children 9-12 yr have excessive distress when separated from a parent; and those 13-16 yr often have school refusal and physical complaints