What age should a runaway message be sent for according to the provided information?

Sending a runaway message specifically targets individuals who are vulnerable and in need of assistance, often due to their circumstances of leaving home without permission. By focusing on individuals who are eighteen years or younger, the approach acknowledges that minors are generally not yet fully independent and may face greater risks when they run away. This age range is crucial for protective measures and interventions, as minors are still under the care and responsibility of their guardians or the state.

The emphasis on individuals who are eighteen years old or younger also aligns with legal definitions of childhood and minor status in many jurisdictions, providing a framework for appropriate responses from authorities and social services. The goal is to ensure the safety and well-being of minors who may find themselves in precarious situations, making the need for appropriate messaging and resources essential.