Some of the shows at the Ranch Bowl were 18 and over, including (I think) the Buzzcocks show in 91.
My friend and I were 17. So we found out the name of the guy who managed the ranch bowl, and fabricated a phony internship program. We wrote a (fake) letter from our journalism teacher thanking him for his participation and letting her students into shows for free so that we could write about them and saying please enjoy this home-baked cookies, and picked up a dozen cookies from Bakers. The bouncers were all about the cookies, and let us in! We got to interview the Buzzcocks for over an hour, and put the interview in our Papillion High school paper.
Which is all to say, “Nebraska Nice” is a real thing.