Structure(para. 4) In U.S. elementary and high schools, children who prefer to read books ather than play football, prefer to build model airplanes rather than idle away their time at parties with their classmates, become social outcastsStructure (para.4) In U.S. elementary and high schools, children who prefer to read books rather than play football, prefer to build model airplanes rather than idle away their time at parties with their classmates, become social outcasts