At my college, the professors that took attendance were almost always the worst ones, teaching GEs to a lecture hall of a hundred students that had no reason to care, and ultimately did little to improve learning. I think if any of the upper division major-related professors tried to force attendance, they’d be laughed right out of the room. But the ones worth going to had steady attendance anyways, even if they put up lecture notes or slides, because they were often genuinely useful lectures to go to.