The goal of education is preparation for life. The goal of literacy training is preparation for education, not just formal education but life-long education, education in the broad sense. School practices which contribute to this process of education for life should be widely accepted, even applauded. But they aren't, or at least, not all of them are.
Standal, T. C., & Towner, J. C. (1982). The 'Virtues' of Round Robin Reading. Reading Horizons, 22 (3). Retrieved from http://scholarworks.wmich.edu/reading_horizons/vol22/iss3/8