I have taken the trouble to read this thread from the beginning, and some of the responses have surprised me, to say the least.
Actually, I never cease to be amazed at the effort, energy and thought put into attempting to define (and control) what women wear (and are allowed, whether by fashion, law, or custom) in public.
Shrink's posts are - as always - excellent, humane and worth heeding, a voice of sanity and reason in a mad world.
To the OP: If the pants in question are comfortable, fit you 'so good', and keep you warm on cold winter days, why not wear them in public?
Yes, there are occasions, and places where a more formal approach may be required and expected: Interviews, a less relaxed work environment, and for those so inclined, perhaps church or formal family occasions. Otherwise, in the dark days of miserable winter, I cannot think of any. Wear what makes you feel comfortable and able to cope with the weather on your terms, and let other prying, judging eyes mind their own business and look after their own lives, instead.