> They grew up using Chromebooks … in school, constantly interacting with the local file systems

While it is possible to interact with the local file system on a school Chromebook, it’s certainly not the default. School interactions with Chromebooks seem to consist of logging with highly secure passwords like “strawberry” and using Google Docs. And playing games with heavy PvP components and paid DLC (paid by parents whose kids beg for it, not by schools) that call themselves “educational” because they interject math problems needed to use those juicy spells, make no effort whatsoever to teach anything, but produce a nicely formatted report correlating scores to numbered elements of the Common Core standards.