I LOVE 40's, 50's, 60's even 70's fashion (as regards the 70's & early 80's it's mostly the shoes). Yes I have fond memories of women habitually wearing skirts/dresses and "heels" in contexts where today they are much more likely to wear some form of trousers (the current fashion is rather inconvenient for those of us who like to wear skirts/dresses).
HOWEVER, young CDs today have a much wider range of options than us over 50s had back then. The level of tolerance (at least where I play) has changed dramatically for the better. The internet has opened up a level of communication and information that I never dreamed of when I first pulled on a skirt.
So, if I had a magic wand I wouldn't hesitate to wave it and influence today's fashion designers to resurrect 40's etc fashion but I wouldn't go back there as a CDer (or a GG) for all the proverbial tea in China!