family level of education and children

I found that the education level of families is a major determining factor of a child's success with early education and more in their life. Some of the research I have done promotes that concept, as well as confirms the statistical difference between what families that have a higher education do with their children. It would be interesting to find if more interesting to look into why some higher educated families have students that fail in academics, and also why some students from lower educated families have children that succeed exponentially in academics.