Tuision or School?

I remember I used to attend tuision class so that I could get extra knowledge that I miss in school. The purpose is to help me to catch up my study. However, I notice my students now are very different. For them, tuision is more important because their parent pay. Some of them even asked me to solve problem given by their tuision teacher. Then what is our rule as normal school teacher? They don't respect us because they knew they could learn from tuision. Then why are we exist?