I first noticed a rogue grey hair when I was 15 (honest).
I dyed my rapidly greying hair when I was in the RN in the late 80's - often getting very nearly in trouble for my hair not matching my ID card.
Gave up with dying in the mid-nineties.
Now probably 80% grey and gone past the point where I could dye it again without anyone noticing.
I still hate it but have accepted it.
Sounds like an AA confession. It's enough to make me break out the 'Just For Men'.