Childhood habit or Psychological Malfunction?

If you peed your pants back when you were in grade school, people would think it's normal and consider it a little accident that was bound to happen someday. Perhaps even for an entire childhood. But what if those habits were a little overdue and it prolonged it's visitation 'till adult-hood. Cases like wetting your pants, bitting your nails, having an imaginary friend, affraid of the dark. What would you call that?

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