>>8651740because they give in.
Don't give in, especially if you're going to look like an elaborate chola.
Just look at men, where we went from a 1910s hobos being "better" dressed with multilayered suits and a tie eating out of garbage cans, vs a man wearing a tshirt and jeans to a fancy restaurant today.
Even just 30 years ago there were dress codes for those fancy restaurants and all but the most elitist restaurants keep them now.