Notwithstanding the provisions of section 9 of this Article, the Legislature may establish courts to be known as juvenile courts, with such jurisdiction and powers as the Legislature may provide. The term, qualification, compensation, and method of appointment or election of the judges of such courts, and the rules governing proceedings therein, may be fixed by the Legislature. The state shall be divided into juvenile court judicial districts that correspond to district court judicial districts until otherwise provided by law. No such court shall be established or afterwards abolished in any juvenile court judicial district unless approved by a majority of those voting on the issue.