Once the suit is filed, and the settlement is reviewed by the ad litem who considers the best interest of the child, the parties can then file a joint motion for the court to render judgment, which would then be binding on all parties regardless of their minority. When there is a judgment, the parties also gain the defense of res judicata if sued again on the same topic.
After filing a lawsuit and having it reviewed by an appointed guardian who prioritizes the child's best interests, the parties can file a joint motion asking the court to issue a final decision that will be binding on everyone involved, regardless of their age. If there is a judgment, the parties also gain the legal protection of res judicata if sued again on the same matter.