>>Is it against the law for a person to change gender on a Texas driver license?
Falsifying government records is generally frowned upon.
From the Texas DPS website:
“To change your Address and Zip Code, Name or Gender on your driver license or ID card, you must apply for a replacement (also known as a duplicate) and pay the required fee.”
“If you want to change your gender, you must bring an original certified court order or an amended birth certificate verifying the change.”