M0nica
Going grey all depends on the pattern your hair goes grey. If you go pepper and salt to grey to white in a smooth way it is fine, but if your hair goes white round the edges with a large dark patch in the centre, the look isn't quite so good.
Unfortunately that is the pattern of going grey in my family. I have a photo of an uncle in his mid 80s, still a good head of hair, white round the edges, still dark and grey free on the crown of his head.
I agree Monica, mine is naturally like that too and I’m not ready to embrace the grey, I’d look like a badger.
I’d try it spabbygirl, but bear in mind it might not be what you envisage - I know several people who actually dye their hair to get the grey colour they prefer, and I expect some of the ladies you saw in France did that as well.