A convertible child seat includes a seat frame that presents a seat cavity and an open front to allow cavity ingress and egress by the child. The seat also includes a front restraint shiftably attached to the seat frame and shiftable between a storage position and a child-restraining position. In the storage position, the front restraint extends along the bottom wall so as to be positioned below the seated child and thereby permit cavity ingress and egress through the open front. In the child-restraining position, the front restraint at least partly spans the open front to restrict cavity ingress and egress through the open front.