Im beginning to wonder if anyway that repeats things like "19 year old MEN" ever served or have been in a line unit, or if they just romanticize their service. The only true thing mentioned about this was that people mature a different rates.
The 19 year old MEN in your typical infantry unit have way more problems then football teams, the biggest separator is the fact that the military folks are under contract and the army owns you. You screw up, we are just going to be on cq for 24 hours every Saturday, and make you sign in every hour on Friday, all while staying in a guarded barracks. You aren't allowed to screwup. And if you find a way in those circumstances to screw up more, they just tighten the reigns even more.
I think the general public would almost be flabbergasted at what an army brigade soldiers do. The duis, fights, 700 dollar car loans, general destruction of property, and drugs. You just don't hear about it much. Not to mention e-4s riding out their contract that will do some of the most impressive things to avoid simply doing 5 minutes of work.
The miltary has more probelms with these "MEN" then the general public or even veterans want to admit to, but they are very real.