You sound like another resentful poster who hates losing recruitment fees and who fails to see what's in his own reference. 6-12 year olds are fastest learners which is the reason why local authorities are worried they'd fail to brainwash their population. Some local primary schools substitute their Chinese programs with foreign curriculum which may encourage independent thinking and which may build up critical thinking skills too. The powers aren't keen to hit courses which send rich local parents' kids abroad and that's what your well qualified and experienced eye fails to see here.

From the article:
Chinese lawmakers are considering a ban on for-profit private schools that have classes for first- through ninth-graders — a move that could affect 12 million students and deal a heavy blow to the country’s booming private-education sector

The latest draft revision to a 2002 education act — the Law on the Promotion of Non-Public Schools — that is being debated by the country’s top legislature this week includes a proposal to limit private schools to kindergartens, grades 10 through 12 and university courses, several sources with knowledge of the matter said. About 10,700 schools would be affected if the amendment is passed, according to the Ministry of Education