Mack Allen, 18, attends a rally for LGBTQ+ youth at the Statehouse in Topeka, Kan., on Jan. 31. A Kansas law enacted last year ended the state’s legal recognition of transgender identities and now other states are considering such laws. (John Hanna / Associated Press) TOPEKA, Kan. — Mack Allen, an 18-year-old high school senior from Kansas, braces for sideways glances, questioning looks and snide comments whenever he has to hand over his driver’s license, which still identifies him as female. They’ve come from a police officer responding to a car accident. They’ve come from an urgent care employee...