What about women wearing pants?
My wife chooses not wear pants to a meeting of the Church but I can't speak for others. Frankly I do not like to see women wear pants to a meeting of the Church. The following is an example of what happens when dress codes, whether stated or implied are tossed aside.
In 1960 I started work at the Savannah River Laboratory operated by DuPont for the Atomic Energy Commission! At that time women working at SRL all wore dresses. The male engineers/chemists/physicists all wore shirts and ties.
Some years later, after the introduction of the pants suit, all the women decided to wear pants suits on a given day. The pants suits were basically full length dresses with pants underneath. Nothing was said by management and the dress of many of the women gradually deteriorated until tight jeans or baggy "sweats" were worn. I never saw any shorts other than short skirts. The dress of the men was essentially unchanged except during the energy crisis they were advised that open collar shirts were okay one day a week I believe. I don't believe that there was any specific stipulation that men wear ties but it was the custom. I do know of one case in which an engineer was told not to wear a poncho to work.
The same has happened to women's dress in the meeting of the Church. Sadly in some instances that of the men is even worse, coming to the meeting of the Church on cutaway shorts "sweating like a hog", assuming hogs really sweat!