I think we have all experienced this at one point or another. Use it to drive yourself to be a better rider. When I mentioned in passing that I was considering sending my QH off for cart training, my very best friend laughed at me. She says he will look rediculous and in her words 'no one drives QH's' For me, thats not reason enough not to let him try. Any training is better than none and if I want to drive and my horse has the ability to pull, were gonna drive! And just because she said we can't, I'll try my very best to make sure he is the prettiest driving QH this world has ever seen! You should do the same! It doesn't make your friends bad friends. It makes them less adventurous and lacking courage. Education is beneficial no matter where you take the lesson.