Ageism

Ageism or age discrimination is the stereotyping and discrimination of people because of their age. While trying to convince three tycoons to listen to reason in regards to a terrorist named Doctor Pelagian, Wendy told Marvin that a big part of the problem between kids and adults is the generation gap. And she assumed that because they are kids, they would listen to them, because they wouldn't want to be guilty of age discrimination.

Appearances/References
Super Friends
 * Season 1: Dr. Pelagian's War