Horses can be dangerous. My little sister had a friend, who unfortunately, was killed while horseback riding at the age of 10. She was thrown from her horse, and had a hard fall. Worst part was, though she was riding with another child, the other child did not know what to do to help her. The fall stopped her heart. Had a person been there that knew CPR, there is a good chance she might have been revived.
Horse Safety for Parents