As children grow up, they need to learn to function well in the society and in the increasingly global economy and to move comfortably among groups of people from backgrounds both similar and dissimilar to their own. Fortunately, children are capable of learning to function in more than one social or cultural context and to make behavioral or linguistic shifts as they move from one context to another, although this complex ability does not occur overnight and requires adult support. Acquiring a new language or the ability to operate in a new culture can and should be an additive process, rather than causing the displacement of the child’s first language and culture.105 For example, immigrant children are able to develop English proficiency without having to give up their home language, and it is important that they retain their fluency in the language of their family and community. Likewise, children who speak only English benefit from learning another language and can do so without sacrificing their English proficiency