Essex girls and white french knickers?

At 12.05 am I receive a text message regarding Essex girls and whether they wear white French knickers? Any idea as I have no idea, however it did get me thinking, perhaps if this question is thought of in a wider term do girls in different post codes tend to lean towards different underwear choices?

I will create a piece of artwork based on this question however some research shall have to be under taken first to understand what the majority of people wear in different post codes.