„There is evidence of an association between attendance at high-quality preschools and school readiness, particularly for children from lower socioeconomic status (SES) backgrounds. This evidence suggests that attending a quality early childhood program could contribute to reducing or ending intergenerational poverty for children coming from lower SES homes.“
Univ.-Prof. Dr. Krisztián Józsa u. a., School Readiness Test and Intelligence in Preschool as Predictors of Middle School Success (2022), S. 2.