To WIY, on why can’t women have a uniform: because they’re wired differently?
But maybe I’m wrong. I suggest your wife spend a year dressing in the “Tznius Cultural Revolution” style (an adaptation of that chic Chinese trend of a generation ago). Forget about how happy she would be. How bout you? And no, discontent on your part wouldn’t indicate some moral failing either.
Hashem did not intend for b’nos Yisrael to wear burkas, or the equivalent.