As someone with an education background, it’s not always a bad idea to turn a not-excellent student into a tutor. The ideal candidate in this situation would be a student who understands the content but who might be unmotivated or skeptical of why things are done the way that they are. By teaching a younger student, he or she gets a glimpse of things from the other side, which can build confidence and demonstrate the usefulness of the lessons they were already taught.

Note that this isn’t always the best situation for the student being tutored. You hope that it benefits them, but the main focus is to get the older student to buy in and partner with you in a way that they previously wouldn’t.

To me, this logic perfectly fits the Anakin/Ahsoka story.