I enjoy reading dead tree books as much as anyone, and whilest the publisher/distributor can’t take it away, there are plenty of ways you can lose access to them. Fire and flood being the two obvious ones, whereas digital books can be backed up offsite. It’s also easier to carry many books when they’re digital compared to physical.
For books I care about I try to get both a physical and a (drm free) digital copy for the best of both world.
Oof, that sounds rough. Are these the kids got hit hardest by the pandemic lockdowns? If so, maybe there’s a glimmer of hope that this is an aberration and next year will be a bit more 'normal ', if you can get through this year with your sanity intact. It’s got to be rough on the kids too, the ones who aren’t causing trouble must still be struggling to deal with itm and the ones who are just sound desperate.
I enjoy teaching, or at least, transferring knowledge and experience, I’ll do it to pretty much anyone who sits still long enough, and I’ve been told I’m good at it, but you couldn’t pay me enough to teach a classroom full of kids all day, so you have my respect for that.
Good luck, and I hope things get better for the kids and teachers everywhere.