@regisrain, that is an extremely wonderful idea. I (believe it or not) am actually a 15 year old player from the United States so this really stands out to me. Here are some of my thoughts:
It is very important to note that @smurph is indeed correct concerning the amount of children who would actually be willing to learn the game. He has certainly got a good point concerning the patience most children have is simply not generally adequate. Most kids, (myself included) want to win games immediately and don’t care about simply enjoying the game for what it is (at least in my experience). I started playing when I was about 10 or 11 simply because I was getting tired of chess and I loved deep strategy games. I must admit, the first learning curve is very frustrating (from 25 kyu to 15 kyu), and I was stuck in this zone for the first three years I played. Just a year ago the game clicked to me and with lots of practice and some study I improved at the game. I am around 6 and 4 kyu on OGS and around 2 kyu to 1 dan on the Fox Go Server. I strongly believe that if you can push the kids through this learning curve they will enjoy the game just as much as I do. This game is very different from what most are used to and it is confusing to catch onto at first. I have tried teaching some of my younger siblings the game but without much success, although they have a thorough understanding of the rules and basic direction of play.
This probably isn’t very much help, but it is important to realize that it will take a lot of effort and patience that could be rather difficult at first, but I am all in favor with this idea. With some talented youngsters that are patient and motivated I am sure this will work, and undoubtedly you will receive a lot of joy and pleasure from such a project. I wish you the best of wishes with this, as I can assure you that if I were French, I would surely join this club and love to participate. Thank you for working to spread the game out even further!