Answer: Event schemata are difficult to change because they are majorly stereotypes.
Explanation:
Event Schemata is the concept of Psychology and cognitive science. It is a mental concept. In this concept, people tell their brains what to expect in a certain situation or from a particular person or event, etc. People perceives other things or people on the basis of a variety of experiences and situations. Some of the examples of Event Schemata are Social Schemas, Stereotypes, Social Roles, Scripts, World Views, etc.