Oh yes, very familiar with that most famous son of Cornwall.
Yet, fifty years after RVN, and not so many well known Viet Vets?
Fifty years after WWII, they were everywhere!
My guess, RVN 25% of total forces in country were draftees.
WWII 66% of U.S. armed forces members were drafted.
That appears to make the RVN guys more self-selecting.
Therefore, not a broad spectrum group.
Was also a very unpopular war and the bureaucrats didn’t allow the military to do what was needed to win the war. Many soldiers primary goal was to just survive their one year.