Section 19-11-2 - Purposes of article; construction(a) The underlying purposes of this article are: (1) To provide that public assistance to needy children is a supplement to the contribution of the responsible parents;(2) To provide for a determination that a responsible parent is able to support his children; and(3) To provide for the enforcement of an able parent's obligation to furnish support.(b) This article shall be liberally construed to promote its underlying purposes.