Interesting, thanks. A mentor is a senior, more experienced person who assists the development of a junior person with advice and guidance. This seems to be something else, more of a cultural integration idea.
What kind of organization is it (what's the business).
No that was not the point.
The point is that new employees, students, practically live in a different world that older employees. The point of the system was that students would teach older employees how to operate within this "new world". It's an approach to make sure that older employees don't get stuck in their ways of thinking.