(1) The income from the assets of the child that is not needed for the proper management of the assets is to be used for the maintenance of the child. To the extent that the income from the assets is not sufficient, the income may be used which the child acquires as a result of its work or as a result of the independent operation of a trade or business permitted them under section 112.
(2) The parents may use the income of the assets that is not needed for the proper management of the assets and for the maintenance of the child for their own maintenance and for the maintenance of the minor siblings of the child, to the extent that this is equitable, taking into account the financial circumstances and gainful employment pursued by the persons involved.