e best interests of the child, some states require consideration by the judge free, some states explicitly stipulated judges should consider the various factors.According to the United States of America "uniform marriage and divorce law" provisions, the best interests of their children include the following:(1) one or both parents to child custody will;(2) the children for whom the guardian will; (3) children with one or both parents, siblings, and other important implications for the best interests of the child's interaction with the relation; (4) child in family, school and social adaptability; (5) the relevant personnel of psychological and physical health."The California civil code" 4600th regulations,The court in deciding when to child custody, child health, safety and happiness, from