apparent guidelines given on style and what is deemed socially acceptable when it comes to colour and style with age.
The other argument is, perhaps as Kate is pregnant she has chosen not to colour her hair. Many mums-to-be wait it out, your hair can change and react to colour different when pregnant so why risk it? Maybe she just couldn't be bothered and was too busy to find time to carry out upkeep on her hair. Either way, Kate's hair, Kate's choice.
Articles circling grey roots aren't helpful, productive or news. They are spiteful, and unnecessary and taking advantage of the fact they know it will generate traffic to the site, or newspaper sales. Go read this very funny article on Buzzfeed for some more reaction to the 'breaking news' and let me know what you think below.