The logic behind this was palpable. Nevertheless, this was the way things were done here.
As young aristocrats themselves, Earlene and Cadence had gotten used to this system. But unfortunately, unlike the other parents, they had a father who wasn't as lax about their education. So therefore, because of how passionate and driven Quaid was about their learning experience, he engaged the most respectable mage in the town to teach them and augment their already flaccid academic scheme of work. Laddie of course, being the staunch academic was only to happy to take up the job.