„Most European education systems offer different types of school to meet the different needs of students. Differentiation may be made on the basis of governance and funding (public or private sector), curriculum (e.g. schools offering diverse specialisations or educational pathways), or structural features (different school types catering for different age groups or levels of education in parallel).“
EU-Kommission (Hrsg.), Equity in school education in Europe (2020), S. 75.