Here's the easiest way to comprehend the longevity of Scooby-Doo: Casey Kasem has been doing the voice of Shaggy (Norville Rogers, if you insist on his given name) for longer than he hosted his weekly Top 40 radio show.
Advocate definition, to speak or write in favor of; support or urge by argument; recommend publicly: He advocated higher salaries for teachers. See more. Dictionary.com
Advocates often step in and speak on behalf of an abused child. A child advocate comes in many different forms. Child advocated may help children who have been neglected by their guardian. A child advocate may work to protect a child from harm. Child advocates may try to shape local policy to benefit children in the community.