I can assure you that good CRM has nothing to do with age.
That is correct: There are also young guys who do not have a concept of good CRM. It's as always, biggest problem is the human factor. Everyone learns to fly, but not everyone can learn to handle people.
If there is not an important part of the story missing, I would say, this was the last flight of this captain - 60 or not.
Dani