This benevolent person has different opinions, and the wise see wisdom, and each family has its own characteristics. But if you haven't done it, it's easier to do it from the primary school stage, because the base of primary school students is large and each family's overall investment in their children is also large. I know a brand called Han Shi Win Education, which is not bad. Mainly in primary schools, the courses are more interesting. Children are highly motivated to study. Moreover, the supporting services in the later period are very detailed, from site selection to enrollment and post-management.