Replying to Being good at Park takes balls

So this is my second year doing Park skiing and this is my first year doing rails. I started out the season not doing much and slowly progressed. I ski with a group of 5 people around my skill level.people close to your level and skiing in a group with people usually pushes me and others to try new tricks and get better. Most of the people in my group try new tricks that arnt insane and hit any rail in the park. we progressed around the same. I can do flips but I have a feeling someone will start learning them soon.I can do spin tricks off any rail in the park same with all the people in the group except one. Its frustrating that he doesn't ever try new stuff and its gotten to the point where I stop trying to get him to because its a waist. Like some features I can do swaps then 270s off but he doesn't even hit them because he doesn't have balls. Earlier this season I tried to teach him 360s and it took him 6 days to commit to trying a trick so easy. he landed it first try. Its so annoying that he doesn't try new stuff but I have kind of given up. He has the potential to get good but he doesn't even have the balls to hit a rail more then 2 feet off the ground. Im posting this thread because I want to know if anybody had any similar situations like this or you could give me advice. I know it shouldn't matter as long as hes having fun but hes just really not ballsy compared to all of us and I have tryed everything to get him better/ more willing but idk. It sucks cus he skis the most but hes not great. He also thinks hes great and has a really good local filmier film him. IDK if he pays him or not.