My BF is 55. He was laid off during the Great Recession and thought about dying his hair for the same reasons. He thought it would give him an edge, and appear younger. I told him I LOVE his gray hair and didn't want him to change it. So he kept it gray and managed to survive and compete against the younger crowd.
If you like the gray, go with it! If you are confident in yourself, it will show to others more than what color your hair is. Me, I think I will feel more confident NOT being gray. At least til I am 50
A woman I know dyed her hair red for years. She recently let it go silver, and she is stunning. It looks so much better than the red and she looks younger!