Are people with certain hair colours more likely to go grey as they age? I notice a lot of people with salt and pepper coloured hair but I can’t think of anyone I’ve seen with that level of brown and grey hair, or red and grey hair etc.

All hair colors would generally grey as the person ages. The degree of greying and how fast the person goes grey is dependent on their genetic predisposition. I am not aware if there is a correlation with hair color and going greying.
