Giambattista Vico argues that it's important not to stifle young people's ordinary knowledge by enforcing Cartesian doubt about all things which can't be absolutely proven. In his own words, "we should be careful to avoid that the growth of common sense be stifled in them by a habit of advanced speculative criticism" (868). Too much modern philosophy stunts growth. Descartes's style of philosophy is better suited to more mature scholars: "Just as old age is powerful in reason, so is adolescence in imagination" (868).
Vico doesn't cite Quintilian, but he has some similar ideas. For Quintilian, the issue isn't common sense, but creativity. A child should be allowed to "be daring, invent much, and delight much in what it invents, though it be often not sufficiently severe and correct" (370). For both Vico and Quintilian, education isn't about making sure the student is never wrong, but rather making sure that they learn as they go. It's important not to lose common sense and creativity along the way. Instead of tearing students down and trying to rebuild what from scratch, we should build on the tools the students already have.
Quintilian. From Institutes of Oratory. Trans. John Selby Watson. The Rhetorical Tradition: Readings from Classical Times to the Present. Ed. Patricia Bizzell and Bruce Herzberg. Boston: Bedford/St. Martins, 2001. 364-428.
Vico, Giambattista. From On the Study Methods of Our Time. Trans. Elio Gianturco. The Rhetorical Tradition: Readings from Classical Times to the Present. Ed. Patricia Bizzell and Bruce Herzberg. Boston: Bedford/St. Martins, 2001. 865-878.