The development of effective and tailored language tuition is critical …

„Given the centrality of language skills in determining integration and employment prospects in the host country, the development of effective and tailored language tuition is critical. […] Many OECD countries have specific policies in place to help children of immigrants with language obstacles, often based on systematic language screening in preschool coupled with follow-up remedial classes.“
OECD (Hrsg.), Ready to Help? (2019), S. 54.