It was mentioned before that the chain wearing on the kilt may depend on chain quality. I would agree with this theory.

I have two chains. One I got off eBay. It is easy to see how this chain could cause damage to a kilt if worn constantly. The chain that I got from www.mcrok.com is of high quality, and there are no edges to catch on the kilt, and I don't see how it could damage the kilt.

That being said, I think that the chain looks a little overly fancy for daywear. It took me a long time to find a strap, but I finally found them at http://www.scottishlion.com/sporrans.html