Is ‘inside and outside’ correctly used in the sentence?

Is ‘inside and outside’ correctly used in the sentence?

Of course, who would not want to get along with everyone inside and outside the school? It is good to have friends. It is nice to get along with one’s schoolmates, even if we are from different classes and grade levels. One may not be able to mention all their names, but he/she is surely grateful for all the times they have shared together.