Lorne did not take in a student to give lectures. He himself would get bored doing such a thing.
Lectures, imparting a bit of high-level knowledge, saying a few fancy words, and using a high-level perspective were all incidental, not the main purpose.
What he was really prepared to do was to experience the feeling of being a teacher and find a student at the same time, so that it would be more convenient for him to show off to others in the future.
If necessary, he could occasionally make fun of his old friend to his students.
After all, the age gap between him and Kyle is considered big.
It would be fine to con him once in a while. If it was a con, it would be more appropriate to con a young man like his little friend.
However, little friend's respectful manner made him fall into deep thought.
'This child is being really honest. Should I even try to con someone like him? Forget it, I don't want to think about it for now.'
