I have really dark brown hair so grey is quite easily noticeable. And I started getting grey in my early 20s! 😢
I dye my hair every 3-6 months or so. They're noticeable up the top of my head in my part but I don't have a massive patch or anything.
I dont think lighter coloured hair would suit me, so I'll just keep dyeing dark brown as usual and probably do it more frequent as I get older