I agree, if you are in the official ring your horse has to "look" quality as well as go well. Some horses aren't good enough looking but that does not mean that they cannot be schooled to a high level and be able to be ridden in a double in the unofficial - these horses will not go well in the official because of their looks but why deny them the chance of progressing into the double if they are ready for it just because the horse doesn't have the presence/attractiveness to compete official. And perhaps if the rider is really serious about wanting to go even further, they might want to look at finding a horse that is "pretty" enough for the official hack ring. I for one started riding at a young age and had many lessons off reputable instructors which led me to ride in a double in the show ring when I was still in primary school - and my horses did go well. It's just a matter of getting the right lessons off the right people, taking their advice onboard and practicing at home!