While leggings/yoga pants/track pants have kind of taken over, I’ve always been puzzled why jeans were considered comfy! Too hot in the summer, too cold in the winter, and rather unforgiving for irregularly shaped bodies. Leggings are comfy. Sweats are comfy. Pajama pants are comfy. Jeans .... are not.
I also don’t really think they are particularly fashionable in real life, though they did look great in cigarette ads back in the day
AIBU for wondering why people say they are comfortable?