Why are stereotypes maintained in the face of contrary evidence?

Stereotypes are often deeply ingrained in societal beliefs and norms, making them resistant to change even in the presence of contradictory evidence. Additionally, individuals may selectively attend to information that confirms their existing stereotypes, while discounting or explaining away evidence that challenges them. Social dynamics such as confirmation bias, ingroup favoritism, and the need for cognitive consistency can also contribute to the maintenance of stereotypes despite contradictory evidence.