How many years is compulsory education in Greece? From how old to how old? Is it free?

Greek public schools, like our country, have nine-year compulsory education and 12 years free education. The school mainly teaches in Greek, a few subjects are taught in English, and most students are Greek natives. In Greece's immigration policy, you can apply for naturalization after studying in Greek schools for six years, which refers to Greek public schools. After applying for Greek immigration, if you consider naturalization in Greece and obtain an EU passport, and your children are younger, you can consider enrolling in Greek public schools.

Private schools still charge fees. In the past, most people in China went to private schools most of the time, and they also chose good international schools, because people in China generally chose English courses.