My 9 y/o GD loves horses. She has two and is a pretty good rider. One of her horses is fairly small and is more of a pet, but the other (her favorite) is a very large quarter horse. She would not be interested in a small horse. Would they be willing to give her a bigger horse despite her small size? She would be very disgusted with a little slow plodding pony. Also can you ride the horses at FW on your own or do you have to go on the trail ride with everyone else? She'd probably be bored if all you could do is ride in a straight line looking at the rear end of another horse, but would love it if we could go off exploring on our own on horseback.