In Texas, Runaway is a status offense that applies to juveniles. Once you turned 17 you became an adult under the criminal justice system, and no longer a juvenile. You cannot be termed a runaway. If the authorities/parents know your location, then you also cannot be termed a missing person. Provided there are no outstanding court orders which restrict or limit your residence, then you can leave home, despite that you are still a minor under civil law, and must remain in school.
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