Regional language speakers are subject to negative social judgments. In this contribution, I provide an overview of research in the Netherlands with children who are regional language learners against the backdrop of this deficit perspective. Findings on the lexical and cognitive development of children from Fryslân, a northern Dutch province, and Limburg, a southern Dutch province, demonstrate that regional language acquisition is neither associated with language delays nor with any cognitive difficulties. Linguistic overlap between Frisian and Limburgish, on the one hand, and Dutch, on the other hand, results in ample opportunities to share linguistic resources, experiences, and knowledge. Especially unbalanced children benefit from this cross-linguistic overlap because they can make use of their stronger language to perform in the weaker language. Cross-linguistic regularities between the regional and national language are helpful and support performance in the regional language. Results on cognitive effects suggest that regional language learners have some selective attention advantages. Although significant, the effects are small, the advantages do not last long, and they require sufficient exposure to and proficiency in the regional language.