Exactly so. There are some who glide into the industries in our school systems but it may be that either they are "truly exceptional," were under the tutelage of a knowledgeable adult who could steer them towards certain success, or lucked into happiness.
You may also consider social stratification around Ivy Leagues and Public Research Universities as a side-effect of a lack of a Useful School. People cannot rely upon the reputation of a school and instead resort to a set of predatory heuristics about tuition and the age of the institution.
In a world where the public school system prepares, by grade 12, a legally-literate scholar with a set of vocational skills, the University (It helps to think of it as One University, from which emanates the total knowledge of humankind) assumes a role of governance over the high schools (colleges) and grade schools, which are the true preparatory apparatus of the adult mind.