File talk:Years of compulsory education.png

What is this map about?
What is this map about? Is it about the education COMPULSORY to children (i.e. children are OBLIGED to attend classes)? Or is it about the state obliging ITSELF to give free education to those children who WANT it? --Yomal Sidoroff-Biarmskii (talk) 22:30, 3 May 2021 (UTC)