The lack of (obvious) compatibility creates issues about sending documents to other none Google machines
You can install Chrome on any other PC, Mac, whatever – and then all you need to do is log onto Google and all your docs will be there. Assuming you saved them to Google Drive of course, and the PCs are connected to the internet.
It’s “cloud computing”. What this means is you don’t email copies of things to each other or carry them around on disks and what not – one copy exists in a cloud, a sort of virtual location, that you can access from anywhere and anything via the internet.
If you want someone else to see or edit something, you can select ‘share’ and specify everyone or specific people. They will then be able to see it and/or work on it as if it were on their computer.
This concept is one of Google’s “things” that they are pushing, and a Chromebook is a cloud terminal. Your kids can even see their stuff on their Android phones (I think, anyway, and possibly also edit them). That may stimulate some creative collaboration between friends 🙂