This chapter comprehensively analyses the intricacies of bilingual and plurilingual education, explicitly focusing on the critical importance of inclusive learning environments and the necessity to tackle diversity effectively, especially in European contexts. It highlights the challenges faced by diverse student populations and emphasizes the central role of educational institutions in ensuring program effectiveness. A primary focus pertains to the worldwide acknowledgement of the significance of inclusive educational settings and the worth of linguistic and cultural diversity as advantageous qualities. It promotes a holistic viewpoint and urges educators to modify their approaches to cultivate supportive environments. By implementing practical strategies like culturally responsive education and universal design for learning, educators can play a pivotal role in actively embracing diversity in the future.