(Rick Bowmer | AP) Dex Rumsey, 15, receives a hug from his mother Robyn Friday, Jan. 17, 2020, in Roy, Utah. Dex Rumsey, 15, of Roy, Utah, came out as transgender at age 12. In consultation with a counselor and doctors, he gradually began wearing short hair and boy's clothes, then began using puberty blockers and eventually testosterone. His parents say he's gone from a shy, withdrawn child to a happy, thriving kid.