In general I tend to agree with your points, but we have also to take in account that the "time to market" of technology (in terms of adoption by a large percen

In general I tend to agree with your points, but we have also to take in account that the "time to market" of technology (in terms of adoption by a large percentage of the population) has decreased dramatically. So to take one of your examples: when radio was introduced, I doubt that 80% of teenagers got their own personal set before they had left home to go to college (or start working). This meant that parents had some more time to get acquainted with the technology, and either decide it was not dangerous, or they could ban it if they thought it was really devil-spawned. So while the complaints are probably similar, the actual scenario is different and would merit some consideration. I don't have offspring myself, but in my circle of friends this is something they have to worry about, and they are far from being luddites.