If there aren't consequences for non-attendance, kids won't feel required to show up. Just as has always happened with in-school classes.
I cut plenty of classes as a HS senior partly because the consequences were so minor and wasn't even a particularly rebellious teen. However, schools wised up over time. When my kids hit HS the consequences of cutting a class or full day were far more severe. Parent meeting and/or suspension. Whoa! Almost nobody was cutting class.
My daughter just finished her second week of online teaching. Full attendance. If students are having technical or coping problems with online learning, assistance and resources are available. Just skipping class doesn't go unnoticed, just as it didn't in in-school learning. Absences trigger a swift response from counselors or other admins.
@oldman - Block schedules are fairly common now, and even more so with online classes. Usually there's a morning block (a class or classes), then a break, then another block, a longer break for lunch, and a final block. Within those blocks there may be five minute breaks.
My grandkids (K & 3rd) also have frequent breaks to stand up and stretch, run in place and similar moments to release energy, laugh, break the tension, etc.
@CarolfromTX - I sincerly hope your daughter's school is able to draw its students into full participation. Like it or not, online learning is probably going to be with much of the US a lot of this year's term. Many schools are already committing to online only for the full first semester. Others will have to become nimble at moving from online to virtual and back again as state or local numbers rise and fall.
