I would opine that Jock is 100% correct, as usual, but this is quite a fraught topic apparently, because the last time I did comment on this sort of thing I ended up being accused of racist bigotry . Anyway, to expand a bit, it seems belt loops are not really necessary or even traditional, but people in North American in particular have come to expect them on a kilt. Amongst the group that have them, there is a community that uses them for the kilt belt, and some that use them only for the sporran chain or strap, plus a faction that ignores them completely. Beliefs are strongly held and it is risky to challenge or comment on each practice. And logically, for us neutrals the only safe compromise is to use one loop for the belt and the other for the sporran.