Pants are optional if you live in the meditarrenean. Much less so if you live in the Alps, Scandinavia or northern Russia/Canada - the American Indian’s ancestors likely crossed the Bering straight when it was iced over, i.e. it was hella cold and they had to traverse an extremely long way until warm clothes stop mattering, and IIRC that was like 14 000 years ago.
Pants are optional if you live in the meditarrenean. Much less so if you live in the Alps, Scandinavia or northern Russia/Canada - the American Indian’s ancestors likely crossed the Bering straight when it was iced over, i.e. it was hella cold and they had to traverse an extremely long way until warm clothes stop mattering, and IIRC that was like 14 000 years ago.