Two words:
"Mac Chromebook"
Obviously they wouldn't call it that; but Google's Chromebook is eating Apple's lunch in the education market. That's partly due to the cost differential, of course; but also partly due to the fact that typing or writing -- key school activities, or at least they used to be -- are crap on a touch screen. If Apple could deliver iOS app compatibility in a reasonably-priced, thin, and light clamshell form factor, they might have something competitive -- assuming that they also sort out the device management thing.
Adults who mostly web-surf and email might also be interested in a laptop-lite that doesn't include the Google slurp.