are the holes located specifically at the front?
The position of the holes is an important indicator. If they are regularly located near the navel, waistband, or belt buckle, repeated mechanical friction can occur there.
At this point, for example, the shirt is wedged between the fabric of the trousers and a hard object, such as:
Belt buckle,
trouser button,
zipper,
table or countertop edge
, car seatbelt,
other hard surfaces
Repetitive movements can gradually weaken the fibers of the thin fabric. (BabyMac)
Source Fabrics
The belt can play an important
