ummmm - //But Jordain said she doesn't go anywhere where dress codes rule. //
A fair point, but I think that to restrict your social life in order to make a point is rather limiting, but since Jordain is happy with it, then obviously she has not problem.
The only time I come across the issue is when we go on cruises, and there are formal dress codes for dinner on appointed evenings, which are advised in advance.
There are plenty of informal restaurants on board where people who do not wish to dress for dinner can dine, so it annoys me when some people turn up and flout the dress code, and loudly proclaim that they are doing so because 'no-one tells me what to wear ...' or similar pronouncements.
In my view, this shows both arrogance and ignorance, and I am often annoyed that the staff allow these individuals into the dining room, which rather makes a mockery of the dress code - they should be refused and advised to return in appropriate attire, or dine elsewhere.