I knew a jw couple that visited Nigeria, to see some jw friends they made who were going to the local university.
She purchased some of the native clothing, wonderful fabric and very modest with matching hat and wore it to the meeting. They were a white couple. They were chastised by some of the black brothers and sisters for wearing clothing that was not their cultural background. The elders counseled her for wearing clothing that made her stand out in the group, not appropriate for wear at the KH or out in service.
Did that make a big ruckus. Rather than "stumble" any, she put it back in her closet and never wore it again, where could she wear it and not offend someone?
One more example of how confused the WTS is with all its rules and regulations, written and unwritten.