Yup. And sadly, this has been pretty much the consistent result shown in educational research for the last 60 years.
This tells us the system has not been prioritised for social mobility.
Prof Prachi Srivastava 🌈
How much of a child's schooling is set by birth? New global database (Muñoz & Jaque, World Development): in the average country, ≥56% of education inequality traces to family background. ECA most mobile (0.45), SAR least (0.64). Open access: doi.org/10.1016/j.worlddev.2026.107415