Just look at France and L'ENA: https://en.wikipedia.org/wiki/%C3%89cole_nationale_d%27administration https://en.wikipedia.org/wiki/%C3%89cole_nationale_d%27admi

Just look at France and L'ENA: https://en.wikipedia.org/wiki/%C3%89cole_nationale_d%27administration https://en.wikipedia.org/wiki/%C3%89cole_nationale_d%27admin... A lot of presidents have come from this public school. It shows that just making it public does not really fix the problem of lack of social ascension. With the fierce competition children that get access to private tutors and financial support have the edge.