For many people, having a wedding is the most elaborate and important photoshoot of their lives, and they will get the "picture perfect" portrait, no matter who they alienate in the process.
A bride asked a wedding planning Facebook group for advice on how to handle an insubordinate bridesmaid with blue hair who wants to keep her hair color as it is for the wedding.
People use their hairstyle as a way of expressing themselves, and this bride would rather her friend not be themselves on *her* special day.