Kids love to read about the American Revolution, Vietnam and Afghanistan, or the Cuban Revolt (that finally succeeded). They’re less excited to read about Grenada, Guatamala, the Spanish Republicans, the Hungarian Revolt, the century of Cuban revolutions that failed, the American Confederacy, the Battle of Blair Mountain, the Greek Civil War, the Philippines, or the American Natives.
Guerrilla Warfare is incredibly bloody affair. Rebels rarely live to see the revolt successfully concluded even when it does succeed. The problem with wars of attrition are that they get a lot of their participants killed.