That might not always work. There is a huge issue of Lyft and Uber drivers showing up the first day, passing all the background checks, etc. then selling their account to someone else to take their place. Maybe better is to show up first day, and to do random ID checks throughout the semester. It feels.. unfriendly and accusatory to do that but I'm not sure of the alternative...

.. but if we wanted to be a little Orwellian.. put cameras and facial recognition in the classrooms to take automatic attendance and to identify students who should not be there, or who may be missing for prolonged absences. That'll go over really well....