Sad, the demise of kilts in the sport of curling. Found this article

http://curlingnet.com/articles/encyclopedia/43

Of course, can see how the man launching the stone could have his bits make ice contact and cause him to startle and miss his shot....

Heard on the coverage that the governing body for curling now requires black pants - but, as the Norwegian team showed, the rule isn't tightly enforced. One would think the option of curling kilted would always be allowed.