This problem with getting older is that white hair starts to show. And white hair is unsightly.
The way I tackle it is with tweezers. Pull white hair out by the roots. My aunts make a good game of this when I was younger. On a lazy weekend, they’d pay us kids to pull their white hair out. Each one was worth 10 sen. Gave us lots of impetus to start finding the tiny white hair on their head. This practice, no matter how profitable it was for us, has stopped because my aunts find that dyeing their hair gets the job done faster! (I also think they don’t want us to get rich on their unwanted follicles!)
Dyeing my hair did cross my mind but the last 2-3 times I did that were quite futile. For one, the hairdresser said I had virgin hair. Commercial dye does not “stick” well on virgin hair. And two, my hair is (OK, was) jet black. Need lots of dye and lots of time sitting around with smelly hair dye before any effect could be seen.