> I personally find the idea of doing homework on my phone horrifying but I suppose kids today are either used to it and comfortable with it, or they've simply never used a computer and don't know what they're missing. Though I'd wager they probably aren't comfortable typing on a keyboard.

First hand from a couple of ~16 year olds I know. Definitely not a representative sample. Some know how to type at an acceptable speed. They're awful at shortcuts (alt-tab, many of the browser shortcuts that also present in many other programs (ctrl-w,-t,-s,-q) and most text-selection and movement shortcuts (ctrl-a,-x,-c,-v and (ctrl-)shift-left,-right)) so they navigate clumsily compared to us. They feel awkward when performing simple tasks but they do it faster than on a smartphone. They don't understand some of the terms and abstractions, likely because the smartphones keep that away from them.

Seeing them navigate things like homework or spreadsheets or multiple tabs in a browser from a smartphone is like watching a caveman trying to use a piece of brittle rock as a hammer. It will work in the end, but it's slow. I haven't looked at them closely enough, but I doubt they can comfortably keep more than 10 tabs open and navigate between them with the same speed as on a laptop or a desktop. I assume their browsing habits are qualitatively different than ours because of that. You can't really do adequate research on a smartphone.