In this peer commentary on Maura Priest's "Transgender Children and the Right to Transition: Medical Ethics When Parents Mean Well but Cause Harm", I argue against the "mismatch" model of trans identity. On this model, which is prevalent in institutional and medical contexts, to be trans is to have one's gender identity "mismatch" with one's sexed body.

For trans youth, the experience of gender differs from expectations based on sex assigned at birth (Frohard-Dourlent, Dobson, Clark, Duoll, & Saewyc, 2016). To support gender health—the ability to...