Principal such not do this become most students have c' s in there class. what happen if you were that student that want to play a sport. Most kid will not be happy if you did this. The kid will get there grade up when they can not do it. Your school will win against other school in the united states. your school be know as the best sport teams. other activities help students in class room. same activities are good for the students in different class room. same other students came from other place for this activities. same kid will leave there families to get this education. those kid go back after there education is finish to help there family. same love playing sport like basketball,soccer,baseball,and other sports they have only c' s grade. students that love sport they will do whatever to be in that sport same of there grade are C' s and that all there grade in there class room. most kid have grades of a c' s they sould still be in sports or activities. the kid listen, pass test, do they homework just to be in a sport or activities.