I sew my kilts completely by hand. There are two main reasons for this. One reason is that I have no idea how a sewing machine works. The second is that I do not want any seams to be visible. Without really knowing it, I believe that blind stitches is difficult to make with a sewing machine. I also think that a hand-made kilt is more durable than a machine stitched. I speak now of course the classic kilt wool. Contemporary kilts in other materials is a totally different deal.
Skål!