I love this subject! I think, when buying horses, it’s super duper easy to lose sight of our actual goals, needs, circumstances, and desires in the face of things like potential, thinking about what’s “ideal” for the sport instead of for us, etc.
Here is my thought (it is worth what you’ve paid for it - no refunds :)): Assuming a baseline of soundness - if a horse can walk, trot, and canter without undue effort, then that horse can “do” dressage. I ride out of a dressage barn - we have lovely, purpose bred warmbloods; we also have QH crosses, TBs, draft crosses, Morgans, etc. We’re a barn full of adult amateurs, and no one is held back by their horse’s limitations. Do some things come more easily to some of them? Sure - but it’s at least as much rider input as horse capability.
My own personal process is not going to be useful in this case, because it is: Swear to buy nothing and to save up for a lovely, quality baby while focusing on the many, many project horses that people have asked me to ride. Fail after mere weeks into this upon being offered a total disaster of a horse who needs help. It’s working out - but it’s a bad process :lol:
What I’d tell myself to do, though, were I a less impulsive human, is figure out the following:
What are your actual goals as far as training and “progress” in the first year? It’s so easy to start daydreaming about “well I’d like a horse I could get to 3rd on…” and that’s an awesome goal! But are you a rider who is finessing their skills at second for whom a year-one goal of starting 3rd makes sense? Or would a goal of “I’d like to take one dressage lesson a week and successfully school a training level test” more your style for year-one? We will all have infinitely more fun and success with riding if we choose horses who will be suitable for our realistic year-one goals!
What do you want to do with this horse outside of dressage? Do you want to hack around? Play over fences? Let your kids or friends’ kids sit on it for pony rides now and then? Is it important for the horse to be road safe?
What would make you scared or uncomfortable or unhappy to manage in terms of riding and handling? Be honest - no one else needs to see this list! Will a looky, somewhat reactive horse kill the joy for you? Will you lose your marbles if you have to really work on tuning the horse up to your leg?
Once you’ve got those things in mind, look for that magic venn diagram of horses within your budget that seem to be a reasonable fit for your year-one goals. Assess as you go along, and buy one that makes you happy! (and that vets… obviously :))