Originally Posted by gypsygirl
i disagree, you can keep doing what your doing, it is not doing your horse any harm & he's learning what his job is going to be. Dressage is harder on a horse than jumping is. I always find that starting small fences helps their canter a lot as well. If you were jumping 3 days a week I would say back off, but for ten minutes once a month ? No that's totally fine.
Although you have a point, to be on the safer side, you shouldn't jump a horse until they are 4. And as for dressage being harder on them than jumping, I disagree. At that age, jumping could damage the horse's legs and joints whereas low level dressage does nothing. I say lower level because usually a three year old isn't doing complicated grand prix dressage moves.