The first one to move was the magicians. Since they possessed elemental abilities that could serve as long ranged attacks, they were the most efficient exceptionals to initiate.
Moreover, among all the four exceptional professions, their numbers were always at the highest and were expected to be commonly seen during a battle.
This was because of how easy one can become a magician. A person only needed to be in contact with a magician who was willing to give them mana.
This set apart those other exceptional professions that required a set of prerequisites.
If the magicians relied on connection, the warriors relied on blood relation.
It was not to be forgotten that to be a warrior, one needed to overcome the limit of their own physique. This requirement was difficult to achieve if it weren't for two things:
One was for a person to possess high mental endurance that overcome sets of physical tortures that could make one die just out of pain.