After the incident of having his house damaged by a powerful explosive, Wallace decided to find a better place that was still within this city. It was due to his desire of completing his studies at the Leonhearts Academy to satisfy his family's desire to have their only son graduate in a prestigious academy.
There were hundreds of Magic Academy within this country and only 12 of them were affiliated to the government military. With this connection, even if the student had not passed the licensure examination, they won't have to be factory workers of magic artifacts, working as guards for a security company, or adventuring in the wild to earn a living as a magician.
The graduates in the twelve academies can easily be recruited in the military guaranteeing their stable income and status. Being a magician in the military wasn't stringent at all and they were normally being given a better treatment.