1) I live in Texas. It never really gets cold enough to tuck skinny jeans into UGGs. The people that do this during one of Dallas' 70 F winter days deserve universal disdain.
2) I have a rather large posterior. I did not look good in the 90s style tapered leg jean. I will definitely not look good in a ultra-tapered, ass-and-thigh hugging pair of stretchy jeans.
3) Tunics make me look pregnant. The only way I would be able to wear skinny jeans is with flats and a tunic.