Thanks for your helpful and amazing website. I have a question, why would you use « langues de prestige » and not « langues de la prestige »?
French is spoken in dozens of countries, a phenomenon known as "Francophonie" which is celebrated every year on 20 March. Celebrate by learning about a few French-speaking countries that you might not be familiar with.
Related article: Présentation de l'Organisation Internationale de la Francophonie