I would suggest the gap is there because in normal cases, when the veteran retires, they're not interested in learning everything that's available to them. They're getting out after 25 or 35 years, and they're focusing on being released. They probably have a job lined up somewhere, whether it be in their field from the military or some other field, and they're not interested until it becomes an issue further on in life.
On February 25th, 2014. See this statement in context.