Adultism: a form of discrimination against anyone who isn’t an adult. It stems from the belief that children—but also the elderly—are less capable and have less valid views because of misconceptions about their ability to think and act in complex, nuanced ways. Adultism: a form of discrimination against anyone who isn’t an adult. It stems from the belief that children—but also the elderly—are less capable and have less valid views because of misconceptions about their ability to think and act in complex, nuanced ways. Social Sciences Education Phys.org – latest science and technology news stories