„In Denmark and Estonia, the enrollment level of these children (Anm.: Kinder „from a Minority Ethnic Group“) is very high: in Denmark, 97 % for PPE (Anm.: Pre-Primary education zwischen dem 3. Geburtstag und dem Schuleintritt) and, in Estonia, 100 % for both (Anm.: PPE und ECE, also alle Unter-6-Jährige).“
IEA (Hrsg.), „Early Childhood Policies and Systems in Eight Countries“ (2016), S. 68