Prejudices develop through various social, psychological, and cultural factors. They often stem from stereotypes, misinformation, and lack of exposure to diverse groups, leading individuals to form negative assumptions about others based on race, gender, religion, or other characteristics. Additionally, socialization processes, such as family beliefs and societal norms, can reinforce these biases, making them more ingrained over time. Education and positive interactions with diverse groups can help counteract and reduce prejudices.