Jeans are not comfy. They are work pants. They were invented for cowboys and industrial works to have something strong and tough. No amount of bleach can make them as soft as regular cotton.
Despite the uncomfortable button closures, I'd rather wear my dressy pants than jeans. If I'm going for nothing more than comfort, I might wear sweat pants because of the elastic waistband. But the overall most comfortable thing to wear is a skirt. I don't understand why people hate wearing them so much. They are absolutely non-restricting on your legs, and offer the most freedom of movement.
One requirement when wearing a skirt, that doesn't matter with pants, is watching how you sit. The longer the skirt, however, the easier that becomes. My favorite thing to wear is my super long floor length cotton dress. It has no slits and I can sit anyway, anyhow. It's not lady-like, but I can do it. I can cross my legs, prop them up on chairs, ...whatever.
So, wear whatever you want. I don't care. But if you are buying a gift for me, get me a skirt!