I recently took some college classes later in life (being dropped in with a bunch of 18 year olds at 30 is an interesting experience), and was blown away by the few ex military guys (roughly my age) in the classes. Of course it might be self selecting since it’s the ones who chose to go to school after their military career ended, but they were consistently some of the most mature, level headed people I had ever met. Definitely changed my outlook on folks coming from the military.