There is something instead tempting in the idea of an educator and gogogocheck his pupil, a teacher and his pupil, or an advisor and his mentee. The power play, the authority, the temptation and the forbidden are all very alluring. This is specifically true when the teacher is a man and the trainee is a man. The mix of a uniformed authority figure and an anxious student makes for a very warm and forbidden story.
The instructor is normally illustrated as a rigorous and reliable number while the student is portrayed as an ignorant and interested character. The power play is apparent