It puzzles me so much when some people become uncomfortable with their grey hair. They buy ptoducts to make it black. It is like changing your gold medal to black. No one will notice its worth anymore.
It shows the rank you have gotten to or acheived on the planet earth . life itself is a great struggle in the way that many people didn't make it to that stage but by grace you got there. Some people died because they couldn't stand the hurdles. But you got there. Don't be ashamed to show it off.
Especially for the young people coming up, who think they know so much than their own parents or grandparents. It is just like a baby who can tell his mum that he can wear his own diapers.