I had a grey streak by time I was 23. At 25, my boss said,"You are too young to be so grey. Color your hair!" So I did what was then called a reverse frost (now I think they call it low lights). I did that thru my 30s, then all over color thru my 40s. When I was 51, I was tired of coloring and stopped. Got a nice short cut. Was I amazed at how grey I was! Never realized....! But it's a nice, all-over grey. And the grey hairs are coarser, so I have more body. I love it and am very glad I stopped.
Grey is the new blond, you know!