White after Labor Day?

Labor Day by summerwind41490 featuring J Brand jeans

With Labor Day coming up on September 6th, I thought I'd do a post to get everyone's opinions about white after labor day and all of the other summery fabrics post labor day. The " rule" is that you are only supposed to wear white after memorial day (with the exception of Easter) and through to Labor Day. Do you follow this "rule"? I have been following it for years, however, ever since I went to college, I have made my own exception.
Reason being is that I attend school in the south where it is hotter for a lot longer than in Pittsburgh and I can wear my whites, seersucker, linen, espadrilles, madras, and eyelet well through September, and even in October there are times when it reaches 80 degrees and I catch myself reaching for my linen dresses, madras skirts, and the like.
I know a lot of people are picky about the "rule", and other people don't even acknowledge that the "rule" exists. Does anyone else feel that this fashion "rule" doesn't apply as much to southern states or does anyone feel that this "rule" is very outdated?
All in all, while I don't think it'd be appropriate to do white after Labor Day in Pittsburgh, I will keep wearing my summer fabrics at school until it gets cool enough to put them into storage. I'd love to hear your take on this fashion "rule"! Have a fabulous day!
Yours,
sCe