(Pro 20:29 KJV) The glory of young men is their strength: and the beauty of old men is the gray head.
As one who is officially “old” (2205) I am a bit resentful that my hair color is mentioned and not my wisdom and experience. We don’t always get what we want. Often we don’t get what we deserve and that can be a good thing.
Keep in mind that in Proverbs context is usually worthless and that is the case here. It would seem to be saying that our culture looks at outward signs that we have little control over and awards merit badges based on them. The strength of youth simply means that they are young. Gray hair comes to most people without any effort on their part.
So? It would be good if we would learn to evaluate based on things that are worthwhile rather than what is obvious. We have an election coming. We go shopping every day. We have some control over whom our friends will be. Look deep.