A credit union may issue shares in the name of a minor as the sole and absolute owner of such shares and may accept the purchase of such shares by and for such owner, pay withdrawals from such share accounts, and act in any other manner with respect to such share accounts on the order of such minor. Any withdrawal of shares or delivery of funds from such account to the owner thereof, or payment of a share draft or other written order for withdrawal signed by such minor owner, shall be a valid and sufficient release and discharge of the credit union for any payment, withdrawal, or delivery so made. The parent or guardian of such minor shall not in his capacity as parent or guardian have the power to withdraw or transfer shares in any such account unless the minor has given written notice to the credit union to accept the signature of such parent or guardian.