I started going gray in my 40s. My mother called me a 'dishwater blonde." (Leave it to my Mom to not mince words!) I figured gray would be better than that! My hair now shows white/grayish in photos, but in real life, there are some dark 'dishwater' streaks in it. The beautician tells me other ladies are paying to get the look I have. So, hey! Why worry now at 66?
BUT as soon as I became mostly gray, I did notice the youngers using louder voices (if you have gray hair, you must have lost your hearing, too, you know). All in all, I just go with what I have. My breathing does not do well with chemicals, so another reason to be natural.