Some say writing is a solitary pursuit, but first a writer must be a hunter and a gatherer. Only then is he able to draw believable characters and scenes and events.
Mature people sometimes suggest they might be too old to write. I argue that only in maturity do they possess the life experiences to write effectively. It's the mountains and the valleys of life that season a person or a writer. My heroes in life are those who have birthed and buried, who have known triumphs and defeats. To me, Rudyard Kipling in "If" defined the requirements for becoming a good writer.