The WT has always been obsessed with what people wear. This is because it's a religion that is only interested and concerned in outward appearance. Same applies for the whole ministerial servant thing and all of the rules around submitting a monthly report, facial hair, tattoos, piercings, hair color, suit vs sport jacket, skirt length, hair length, chaperones, makeup, cleavage, jewellery, hair gel, colored shirts (and now socks), yadda yadda yadda. Appearances are everything.
(pssst...it's a cult)