Learningtodriveisimportanttotheindependenceofteenagers，butitisalsoagreatresponsibility．Althoughhavingalawthatkeeps16-year-olddriversfromhavingmorethanoneteenagerinthecarwiththematfirstseemsunfair，therearec
Learningtodriveisimportanttotheindependenceofteenagers，butitisalsoagreatresponsibility．Althoughhavingalawthatkeeps16-year-olddriversfromhavingmorethanoneteenagerinthecarwiththematfirstseemsunfair，thereareconvincingreasonsforthisrequirement．
TheInsuranceInstituteforHighwaySafetyreportsthatteensarefourtimesmorelikelythanolderdriverstobeinvolvedinanautomobileaccident．Italsoreportsthat16-and17-year-olddriversaretwiceaslikelytohaveanaccidentiftheyhavetwoteenagefriendsinthecarandfourtimesaslikelytohaveoneiftheyhavethreeormoreteenagefriendsinthecarwiththem．Fatal（致命的）crashesof16-year-olddriversinvolvethehighestpercentageofspeeding，drivererror，andnumberofpassengers．Thisinformationisenoughtocauseanyreasonablepersontowonderaboutthewisdomofallowingnewteendriverstotakeacarloadoffriendsanywhere，evenifthelawpermitsit．
AstudyattheNationalInstitutesofHealthindicatesthatthepartofthehumanbrainthatcontrolsjudgmentandevaluatestheconsequencesofouractionsmightnotbefullyformeduntiltheageof25．Untilthisstudy，researchershadplacedtheageat18．Ifthisistrue，itcouldexplainthereckless（鲁莽的）behaviorofmanyteens，behaviorthatoftenextendsintotheirtwenties．Italsocouldbeastrongreasonforbeingcautiousaboutthedrivingcircumstancesofyoungpeople．
Thisisnottheonlystudythatindicatessuchcautionisnecessary．OnestudyatTempleUniversityinPhiladelphiaexaminestheresultsofpeerpressureinriskydrivingsituations．Thestudy，whichusesadrivinggame，hasanindividualguideacarthroughacourse，bothaloneandinthepresenceoffriends．Threedifferentagegroupsparticipatedinthestudy：13-16，18-22，and24andolder．Membersoftheoldestgroupshowedcautionwhetherdrivingaloneorwithfriendspresent，butthetwoyoungergroupstookmorechanceswhentheywerewiththeirfriends．Furthermore，becausethesedriverswereaccustomedtothenoiseanddistractionofmanypassengers，theywereunabletoseetheirownmistakes．Onceagain，thisisagoodindicationthatalawrestrictingthenumberofteenagersinthecarwithayoungdriverisagoodidea．
67．WhatdoestheauthormainlytellusinPara
