To the people who took college-level classes: Did your professors take/grade attendance? Why?

Did a good amount of your professors do this, just a few, or none? Of the 7 classes I’m taking now, 3 have attendance as part of the grade. I have rarely found a justifiable reason for a professor to take attendance. Actually, it’s only happened once: to take attendance in band because practicing as one is crucial for the performance. But in any other type of class, I’ve never been given a legitimate reason to take attendance. Is there one? The idea of it seems backwards to me.