We’ve been printing stuff since first grade, although admittedly she didn’t get a Chromebook until fifth grade and printing has been less.

That said, I’m sure they have accommodations for parents who don’t have printers. It’s probably the school themselves or the teacher (more likely since it’s probably on their dime) wanting to save ink.

Also, it isn’t 100% necessary for this reason, but it’s really helpful to have a printer when doing posterboard projects for things like labels.