[quote=@Lyly]
I'm not even 30 yet, and I'm turning grey big time already. 
Also, too lazy to dye it. [/quote]

I've got one to make you chipper. I'm 50+ and as long as I shave regularly, you can barely see any grays at all. ;)
Oh yea, I wear a high and tight haircut all the time so it is almost skin tight on the sides and back too. But the top of my head is still covered in dark brown hair. My sister on the other hand had your problem at thirty and dyed it regularly.