Südostasien, Kanada und Frankreich betreff Nachhilfe Vorreiter:
„Not only in Korea but also in countries such as France, Canada, and Singapore, tutoring has moved beyond being just a shadow of the regular system to become a system in its own right which offers additional learning opportunities.“
Univ.-Prof. Dr. Mark Bray, „Researching shadow education: methodological challenges and directions“. In: „Asia Pacific Education Review“ (2010), 11, S. 10f