Nonsense. If that we’re the case, any horse could and would happily do any discipline. They don’t and won’t. No matter how well versed the rider. You always jump to extremes. I’ve trained practically all my horses to jump. Most of them have enjoyed it. I have never in my life jumped and jumped until the horse was sore and miserable. I don’t work that way. I know how to ride jumps - I evented and foxhunted for years. I started B the same way I always do. Poles, little grids, cross rails. Short sessions, mix it up, make it interesting and fun. She doesn’t mind but is very obviously not enthusiastic. I have no interest in forcing her to do something she doesn’t enjoy. We jump just enough to add some variety to flat work and to negotiate trail obstacles. It is beyond ridiculous to assume that horses can’t have likes and dislikes about the work they do.