Why some horses and breeds not suited for Dressage?

All I know about Dressage is what I've read. I know that it started with training horses for war. I thought Dressage was about training a horse to respond to leg pressure and ultimate control over a horse. A harmony between horse and rider. Am I wrong? If I am right, why wouldn't any horse be good?

I am not thinking about training my horse. I've just seen answers to others that certain breeds like Quarter Horses aren't suited for dressage. In winning ribbons, is it that the judges prefer to judge certain breeds higher.

there's no reason for a certain breed not to do dressage. My sister's cob is very good at it, but high level dressage riders prefere tbs and warmbloods because they tend to be more responsive and also can be easier to get the correct style of movement from them.
As for it's origins a lot of dressage moves were developed due to their use as war horses, but it has become much more about having a horse who is responsive to ride and is athletic. It's not about control, it's about an equal partnership with your horse

Different horses have differnt builds. For an example, you would not use a draft horse for dressage. Dressage involves hard things to do for the horse and the horse must be the right buold. Alothough, any ridable horse could be used to do little dressage, but not competeing..

I think any horse can do anything if you work at it when there young and not give up.

It would really depend on the level of dressage you wanted to do. All horses are capable of basic training exercises. Some breeds have the confirmation and mental attitude for the higher dressage movements. It also depends on the trainer. A trainer that is highly skilled would achieve better results on say a draught horse than an inexperienced trainer would achieve on a Warmblood or horse that was bred for dressage.

dressage is a great way to get a perfect harmony with your horse, great way to build up bonds where you dont have to flap and screem to get it to walk on!

but some horses are better at it than others because of leg confamation and ease to move.

i dont know if you have ever watched it but getting a TB or warmblood to do it is alot easia than trying ith a draft horse.

some have the attitude perfect for it but others dont so if youre looking for one, get one from good dressage breeding.

I believe that all horses can learn dressage because it is the ultimate conditioning for horse and rider.

If you are talking about winning ribbons then this is another subject! Like anything competitive sport in life, starting out with the best that you can afford in conformation, movement and elasticity would be wiser.

But when I read your question I feel you are thinking that some horses just can't do basic training. All horses would benefit from basic dressage. They will improve but only to the extent of their capability.

I say train your horse as best as you can. If you have a breed then go to breed specific dressage competition. And in response to the draft horse breeds--my friend who is a trainer has a client that is doing very will with his percheron.

I hope this helps, don't let what other's say discourage you it is only their opinion!