Joined Cases C-296/24 to C-307/24, Jouxy and Others: Judgment of the Court (Fourth Chamber) of 18 December 2025 (request for a preliminary ruling from the Cour de cassation – Luxembourg) – SM, PX and Others v Caisse pour l’avenir des enfants (Reference for a preliminary ruling – Article 45 TFEU – Freedom of movement for workers – Equal treatment – Regulation (EU) No 492/2011 – Article 7(2) – Social advantages – Family allowance – Condition for granting that allowance to a non-resident worker for a child of his or her spouse or registered partner – Requirement that that worker must support that child – Assessment criteria – Presumption based on the existence of a joint household – Directive 2004/38/EC – Article 2(2)(c) – Concept of family member)