(non eng speaker)
1-2y ago I read study about equal chances in education. In Finland, Norway or maybe different country.
So they have this program for equal chances in eduction for kids. And few years later they check how these kids doing. With equal knowledge/degree kids from wealthy families do great. But kids from poor families do not much better that their parents.
In concussion kids from wealthy families still have advantage on poor family kids. Not because they are better educated but because who they/their parents know.