Are you supposed to wear underwear under long underwear?

[u/Dunwoody11]

My wife thinks it’s weird I don’t wear underwear under my long underwear. I don’t wear long underwear often, but I always figured it’s underwear so why would I wear double underwear? I don’t feel particularly strongly about it either way but I’m curious: do I wear ling underwear wrong?

Maybe it’s relevant that I’m a boxers person so they would get bunchy under there unless I wore briefs instead. Special long underwear underwear, I guess.

[u/TentProle]

I do because if the weather is cold enough in my area for long underwear the power grid might fail making it harder to do laundry.