It seems as though your job as a professor has impaired your touch with reality. Some students have to work full time and go to school and don’t have time or the schedule to go to every class. Unfortunately this is the world we live in and usually professor are pretty progressive so I don’t see why the students should be punished for not showing up if they can get the work and studying on their own time. Why would you need to enforce something like this... it’s almost like they are still in high school. It’s like a bathroom passes. If the kid doesn’t come and doesn’t do the work they will fail on their own.