Milo settles into the driver's seat of a blue Chevy Volt. His dad Phil sits beside him. I am in the back with his mom, and we make chit-chat as we buckle our seatbelts. 

At barely 16, Milo is the proud holder of a Florida learner’s permit, a state-issued driving permit. He has just finished 10th grade. His favorite class is journalism. He enjoys roller skating with friends. Milo is also transgender.

He glances in the rearview mirror as we drive away from Common Ground Books, Tallahassee's only LGBTQ and feminist bookstore. The family, whose names we’ve changed to protect their privacy, bought half a dozen books to help pass the time on an upcoming road trip, most of them science and historical fiction.

The city is small. In less than 10 minutes, we pull into an empty parking lot next to a complex of sports fields and tennis courts that belong to Milo’s high school. The grounds are quiet — summer break has just begun. He points to an empty red running track on the perimeter of a football field, down the hill from the main school building.