What is added to the Army Blue Service Uniform as a "rite of passage" when a soldier enters the NCO Corps?

When a soldier enters the Non-Commissioned Officer (NCO) Corps, a gold stripe is added to the trousers of the Army Blue Service Uniform as a symbolic "rite of passage." This gold stripe signifies the individual's new role, responsibilities, and rank within the Army, marking a transition from a junior enlisted soldier to a leadership position within the ranks. The addition of the gold stripe serves not only as a visual distinction but also as a point of pride for new NCOs, who take on greater responsibilities in training, mentoring, and leading soldiers.

In addition to the significance of the gold stripe, the service cap is also part of the uniform but not specifically a rite of passage unique to entering the NCO Corps. The jacket and additional badges do not carry the same traditional meaning as the gold stripe for this particular transition. Therefore, the addition of the gold stripe to the trousers is the correct answer, highlighting its importance in the context of Army tradition and identity for NCOs.