VickiRose, I think you're doing what's best for Rose at this point in her training and life. I also made that decision for mine, and it was the best for all.
While mine were at the trainers, they had to contend with several dogs of all sizes, donkeys, mule, many other horses and two pot bellied pig. They handled it all well , in time. I can't even picture what mine would do if presented with kangaroos!
Be the kind of woman that when your feet hit the floor each morning the devil says, "Oh crap, she's up!".