How do you know that granny and ivy are prejudiced the bean tree?

In "The Bean Trees," Granny and Ivy exhibit prejudiced attitudes through their discussions and reactions to characters who are different from them, particularly when it comes to cultural diversity and social norms. Their comments often reflect a narrow-minded view, showing discomfort with change and a lack of acceptance for those outside their established community. This is evident in their interactions with Taylor and the challenges she faces as a single mother and outsider, highlighting their reluctance to embrace new perspectives. Their behavior serves as a contrast to the more open-minded characters in the story, underscoring themes of prejudice and acceptance.