Studies in the US have demonstrated differential treatment of black students by white teachers affecting their learning outcomes as well as, in the long-term, their lives. 80% of public school teachers in the US are white.

In Nepal, disproportionately high percent of school teachers are Khas-aryas, the hill so-called high caste Hindu. How do they treat students belonging to other castes? Likely not the same way they do their caste and that likely has affected the educational achievements of students of other castes, as well as their lives later on.