The US Army had dedicated Military Occupational Speciality “43M - fabric repair specialist” for sewing (renovation) until 2001. It was then merged with another to become “92S - Shower, Laundry & Clothing Repair Specialist”. In 2015, the sewing component was removed to allow extra training on operating bulk laundry machines, apparently:

https://www.army.mil/article/146104/clothing_repair_taught_f...