Yes. Bobbling (pilling) happens when the short fibres in the fabric are rubbed , they pull out, and form those little balls. Note that Guernsey sweaters, for example, tend to use long fibre wool, and are pretty resistant to pilling. But cashmere is expensive stuff, so no-one is going to increase already the high cost by ensuring that only long fibres are used to make the wool.
If pilling does appear on the garment, the answer is to use one of these.