My theory is accents is how less attractive men get laid / partnered up.
My mother's family is Irish, and the women are all beautiful, but the men - well let's say most of them leave a little to be desired :>
However, they're all partnered up with gorgeous women (both Irish and Kiwi for the most part).
I have no choice but to attribute the lack of birds of a feather theory to their voices - they sound so hot.
A nice Scottish accent (not a Weedgie / Glaswegian one) can do the same trick.
DISCLAIMER: This thread is somewhat facetious, please do not take it offensively