What are some common causes of erre moscia in fabrics and how can it be prevented or treated effectively?

Common causes of fabric pilling, known as "erre moscia," include friction, low-quality fibers, and improper washing. To prevent it, wash garments inside out, use a gentle cycle, and avoid overloading the machine. Additionally, air-drying and using a fabric softener can help reduce pilling. If pilling occurs, gently remove the pills with a fabric shaver or sweater comb.