If the question is asking if summer school should be for everyone, regardless of their ending grade/credits, no. Summer school is intended only for those who are missing credits so they can make it up. Requiring those who have already achieved their credits for the year to participate in summer school is not only a waste of their time, because it will do nothing for their GPA, but a waste of school resources. Summer school is only to make up lost credit or to make up lost absences from the school year, changing your G grade to whatever grade you earned.