I’ve never had an attendence policy, and I take hard course, like statistics, accounting, I attend those as much as possible. On the other hand I take courses for my electives that are a complete joke, like for instance, intro to anthropology (spelling?)
I went to that no more than 5 times, 3 of those were to write exams, and I got a B+. Every elective I have ever taken has been an intro course, with the marks consisting of only 3 or 4 multiple choice tests throughout the year. Plus, at my school, a full academic week consists of 12 in class hours. This includes all labs.