My friend's DS (8) lives with a family member and has done for the last 4 years. Child's mother has supervised contact only (concerns around ability to parent), his father has weekly overnight visits. My friend (DF) now would like DS to live with him full time. Would it automatically be in the child's best interest to live with a parent over another family member? There are no concerns about the father. Would the length of time DS has lived with family member be a factor?