Not in my experience. I had students last term who had stopped coming by week
7, but were never removed from my grade book. (I thought that students who did not participate within 14 consecutive days they were supposed to be dropped. That was not the case in my classes.) So, with so many emails telling students work is late, they are absent, their grades are failing, etc. I spent more time doing outreach than teaching. It shocked me how low the retention rate is and how casually students felt about their very expensive educations. Out if all the outreach, not one of those failing students passed. Or really did much participating. Outreach did not work. And it affected the instruction I gave. I was so happy for the few really good, interesting and engaging students I had in my classroom. I wish them all the very best! The rest? Shame on them for throwing all that money away.