We recently purchased a 12 year old pony gelding for my 8 year old daughter. All he seems to want to do is follow someone leading him. When she tries to get him going on her own, he plants his feet and ignores her or tosses his head up and down. We have tried a snaffle bit as well as a curved bit with a spinner in the middle with no luck. I'm going to borrow a hackamore and try it this week. In every other way he is great. He loads, leads, and does not spook. My daughter has taken some lessons, but is still basically a beginner rider. I'm not sure if he is a good fit, because she struggles with him so much.