Cal. Probate Code § 3401

(a) Where a minor does not have a guardian of the estate, money or other property belonging to the minor may be paid or delivered to a parent of the minor entitled to the custody of the minor to be held in trust for the minor until the minor reaches majority if the requirements of subdivision (c) are satisfied. (b) Where the minor has a guardian of the estate, all the money and other property belonging to the guardianship estate may be paid or delivered to a parent entitled to the custody of the minor to be held in trust for the minor until the minor reaches majority if the requirements of subdivision (c) are satisfied. (c) This section applies only if both of the following requirements are satisfied: (1) The total estate of the minor, including the money and other property to be paid or delivered to the parent, does not exceed five thousand dollars ($5,000) in value. (2) The parent to whom the money or other property is to be paid or delivered gives the person making the payment or delivery written assurance, verified by the oath of such parent, that the total estate of the minor, including the money or other property to be paid or delivered to the parent, does not exceed five thousand dollars ($5,000) in value.