` ` The district firmly believes it has acted reasonably and fairly , '' its website says . Coy Mathis ' parents filed a complaint under Colorado 's Anti - Discrimination Act . Coy can no longer use the girls ' restroom at her elementary school . The difference is that `` gender identity is who you are , and sexual orientation is who you want to have sex with , '' said Dr. Johanna Olson , a professor of clinical pediatrics at the University of Southern California , who treats transgender children . The school district says Coy can use other facilities in the school .
` ` The district firmly believes it has acted reasonably and fairly , '' its website says . Coy Mathis ' parents filed a complaint under Colorado 's Anti - Discrimination Act . Coy can no longer use the girls ' restroom at her elementary school . The school district says Coy can use other facilities in the school .