And often, how it doesn't.
And why this drives perfectly normal people to drink.
Hence the Pub context. If you can understand how going to the pub works, you can understand how a web browser works.
It's not the kids who need to understand this stuff, it's the adults. Especially when a small person presents them with an arbitrary Internet-capable device and says "It doesn't work. Waah!" - when the manual's back at home.
Or when the adults are stuck in a hotel room frantically trying to get to work's email server. Or are backstage reinstalling things on a laptop an hour before a gig. Or are halfway round the world in an obscure town miles away from a web cafe. Or in the middle of a field of lunatics.
Compatible with: Drinkers. Dads. Festivals. Travellers. Windows. Mac. And as many Apple/Blackberry/Android devices as the author could get hold of.