You may not care about such things, but a strap is much more sartorially "correct" for daywear than chain, apart from the practicalities. Using a chain when hiking is just "loud" and inappropriate. There is nothing to stop you wearing swimming trunks to the supermarket or a tuxedo to a rodeo, but few do.
I believe the kilt should be worn with dignity and apprpriate accessories. There is a difference and a distinct line between expressing your individuality and shouting "I am an exhibitionist" ......