How could i convince my parents to let me join a gymnastics group?

I can tell u really want this lol! Well, you can perform infront of them like that other person said. Just keep going on and on to ur mum. Get her to watch u n tell her how much n why u want to go. Can you do handsprings n stuff n u taught urself? wow impressive lmao. Just beg, im sure she will understand if u keep going on!! Good luck n i lovee gymnastics too!! xox