Its fun to fly a kite. Its more fun when a lot of people do it.
Anyone that owns a kite, keeps it in good shape and likes to use it can join. No real hard rules on the way to join. You can join with any other member that will accept you. However, it is much harder to get the Kite maker status of the group. That requires being a member and earing your way into the top ranks with your kite design. There is only allowed to be one kite maker per town and 2 in a city. Every year kites are judged and the winners in each keep location keep the title.
No firm meetrings other than the kite judging. How ever there is often un planed meetings when someone sees a kite flying and grabs thier own to joing.
Have a kite, use it and keep it in good shape.
The overall leadership of the society is the Kite Rights who travel every year in a land to set up the judging, yet often let the spectators do the judging. Then there are the Kite makers who hold the title dear as proof their product is best and can justify the cost.