This idea is rather flawed if you decide to take into consideration the whole aspect of one’s life. This just kicks the communication problem down the road when it needs to be dealt with early rather than essentially discouraging the child from learning the language until they have to get a job.  It is also in many cases likely to be wrong; the child will already have started learning the language of the country in which they are living. Even if the father and the mother are only able to talk their first language, kids go to nursery school or have child minders because their parents have to work. A perfect example would be the one of Mexicans in the United States. Two-thirds of Mexican-origin Hispanics ages 5 and older speak English proficiently. More than that, about nine-in-then native-born Mexicans speak English proficiently. [1] The whole idea of parents not being able to talk the local language might be true for first generation immigrants, but not for others. Even when the grasp of the language is less than perfect school is the obvious place to learn it.  [1] Gonzalez-Barrera, Ana, and Lopez, Mark Hugo, ‘A Demographic Portrait of Mexican Origin Hispanics in the United States’, PewResearch, 1 May 2013,