Usually, an old man always like to tell you about his past achievements, if any, his past encounters, his past experience, and from all which the wisdom drawn and concluded.
There is rarely a young boy who likes to listen to an old man's words.
Usually, a young boy always treats an old man and his stuff outdated and outmoded.
In fact, most of the old men talk nonsense and most of the young boys are too rebellious to listen.
In result, there is rarely an old man of wisdom who can meet a young boy with wisdom to learn.
Neil Young - Old Man