Once so finicky it needed operators to take you from floor to floor, today's elevators function flawlessly with little intervention on the part of the user. People no longer need to take classes in elevator operations. Another good example is the radio. When first developed, this tool was the doimain of specialists, requiring expertise and patience to operate. Today's radio is a model of usability, requiring no special training in order to obatain today's Power Top Ten.
Teens use radio constantly without ever having had to obtain a certificate.
Now it is true that not all technologies are easy to use. One would expect, for example, someone operating a nuclear reactor to have some expertise in the subject matter. But such systems are rare, overwhelmed by an array of easy to use innovations. And, crucially, if a technology is to become widespread, it must be easy to use, so easy, in fact, that an operating manual is not needed. A learning simulation, a conferencing tool, a student record keeper - these tools ought all to be as easy to use as a television, a telephone and a notebook.