Yeah, I think that’s where I’m stuck - ok, so yeah you can just bring a young horse to a show and work with it but it isn’t the same as the riding ring so maybe you do that instead. OK, you can go to any schooling show and the classes will be cheaper but maybe everyone is going to the dressage show so this is easier but the classes at a dressage show (at least around here) tend to be more expensive than the hunter and western shows…,but ok, everyone else is going to the dressage show.
As for the recognized shows - that’s a lot of extra money for a halter class. I know horses go to halter classes in the western world but then they sell for more money than those that don’t (and are otherwise equivalent) and/or you have prize money. In the dressage world, they generally want to see a horse going under tack - the culture is just different.
I just cannot think of a lot of people with the money and the young horse that it would really be a sustainable class.
I did take my horse to a FEH horse class, in part for the experience - she was 2, I think, BUT, there was also the chance to qualify for championships (we did not, part because she is not tall). It was fun, but we only went to one (no one else was going to that show, I trailered over an hour by myself).