Maybe fresh woolly mammoth tasted like ambrosia and unicorn spunk. There must have been some reason to hunt them beyond my ken; deer etc, smaller game seems much more viable otherwise.
Sure, if you want to be the wimpy kid in the group that goes for a measly deer while the rest of the group goes after a wooly mammoth, go right ahead. You will rightly deserve all of the flack the rest of the group gives. Peer pressure, boy, I don't know.