I'd say go for it phoenix!
I found my first grey hair aged 11
!
By 36 I was predominantly grey and kept up colouring it various shades from chestnut to bright red for many years. At 60 I decided to take the plunge and had a short crop to reveal the 'natural' silver 
I'm also growing it long phoenix, and have just about got through the in-between stage.
I do occasionally think about colouring it again, but only a blonde. I've never thought the Dot Cotton look was an attractive one 
For now though, I am enjoying my 'silver'. I think it suits me, and I get a lot of compliments on it - from friends of all ages 
The great thing about hair is that it grows, so if you don't like it, it's not long until you can change it!
People who drop out at the last minute

