hmm.. true for fresh grad.. but not really for people with experience..
i was from a private uni, join SB as a mid management level.. most of my colleagues at the same job grade from local uni (couple of them with masters or fch) are at least 4 to 5 yr older than me.. of cose there are also highflyer (not neccessart scholar, usually are very good performer) who are even faster than me..