A simple analogy

Wifi should be like air.  You don't configure it, it's just always there, you don't want to think about it.

Internet should be like electricity.  Everyone has it.  You're gonna have to pay a monthly fee, and it's technically metered somehow, but mostly the power company doesn't screw you so you don't care. (via a friend)

Internet + Wifi is like... a tesla coil.