I think you are overanalyzing the situation. I dont think it is hero worshiping that makes them feel that it is permissible to be in a bar.
Its the fact that there in college and under 21 that makes them feel its not a big deal.
Its way to easy for some to play parent, and others to play the player.
Being in my 20's, this one is easy for me.
Going in front of a judge and getting your named smashed in the local media and blogs like this, is much more punishment than any other college student gets. Lets treat them as who they are, young college students. Chalk it up to an underdeveloped frontal lobe, and move on.