text: The principle should have their students join activities, because you get the experience for college. Once you have something to thrive for it encourages you to keep on doing it. This means you don't want to get kicked off, so you get really good grades. Keeping you grades up is important and looks incredible to the college you want to get excepted into. Experiencing new things and doing them looks great when you try to get accepted into college. The more activities you do and experiences you have to show a college, the better it looks.