Of course, besides the pros and cons of tactics, there is another reason, which is the Yan cavalry has always had a strong confidence in being the "world's best cavalry," especially these two divisions, the Northern Stability Army and Southern Pacification Army.
Since it is a melee, just charge straight ahead, first crush the enemy's outpost riders, then crush the enemy's vanguard, and then let the enemy's routed troops retreat back to our side, forming a beaded curtain. The rear troops follow with one charge, and the enemy might just get confused and suffer a chain of defeats.
