Article 1148 of the French Civil Code

A person who is incapable of entering into a contract may nevertheless carry out on his or her own the ordinary acts authorised by law or custom, provided that they are entered into under normal conditions.

Original in French 🇫🇷

Article 1148

Toute personne incapable de contracter peut néanmoins accomplir seule les actes courants autorisés par la loi ou l’usage, pourvu qu’ils soient conclus à des conditions normales.