Another little thing that irks me are the countless westerns where the townspeople are depicted as meek lambs who cower whenever a gang of bad guys show up. The incidents at Northfield and Coffeyville make it sound like Hollyweird might have been serving up a lot of bs concerning timid townfolk and tough gunmen. I would think many residents of western towns were Civil War vets. Just going out west at that time would mark you as a person with a lot of spunk. I doubt many westerners were shaking in their boots when the bad guys rode into town. They probably did what the people of Coffeyville and Northfield did: shoot the bad guys full of holes.
And don't forget the continual conflicts with the Indians. You were either tough, or you stayed back East.
Another possibility is that Bank robberies might not have been as common as we are led to believe
It might not have gotten a movie, but it did get a song. The Eagles’ Doolin’ Dalton. I remember the line “two brothers lying dead in Coffeyville.”