Edric was stationed near the rear end of the palace as a guarding soldier. Naturally, someone of his caliber cannot be allowed to wander around when so many important entities are around.
Initially, Edric wanted to be a knight and to serve the kingdom, so this was a nice experience for him. His ambition shifted not because he looked down on the job, no, he still respected soldiers and militants from the core of his heart. However, he realized something after spending time with the battalion under Aborne's command and Eric.
If he wanted to grow continuously to serve his nation and humanity as a whole, then he couldn't let himself get restricted. And as a soldier, his movements would be limited.
He had a long conversation with Eric about it—the man being quite easy to converse with when it came to topics like these.