Used to be comfortable

[Highland Logan]

(presumably because undergarments were devised to mitigate the discomfort of bifurcated garments)

I'm pretty sure it was to keep your outter garment clean on the inside. And that goes for kilts as well as pants.

Frank

[Paul]

get baggier jeans!

[SteveB]

Kilts are more comfortable than trousers, with or without pants underneath. I find that as I get older, the tailoring of off the peg trousers are not to the shape of my aging fat body. As an old man my thunder thighs tend to pull the inseam of the trousers across parts of me that would rather be left alone. Work requires trousers. After I am through work, I am through with trousers for the day, and comfort improves.
Slainte

[fluter]

I had gotten into the habit of wearing inexpensive chinos/khakis for work wear. I noticed some chafing about the thighs after extended kilt-wearing periods. This is mostly ameliorated by wearing a better class of pants: likely I would also benefit from losing a pound or two about the thigh-bones.

I will watch for the half-price sales from Bank, Bauer, or Bean. I spend about half again as much on the troosers, but often the better ones will last longer. Especially as I now tend to hang them up immediately on my arrival home.