I don't think this is a generational issue. The baby boomers have plenty of technical incompetence of their own. Most of my middle-aged coworkers view a closet door off its tracks as a reason to call maintenance, rather than simply fixing the door.

I also see a complete inability to troubleshoot in some my parents' generation. I've been called to dozens of houses to power cycle a wireless router. Even after I walk them through how to unplug the router and plug it back in, fixing 90% of the problems, they still call me as soon as anything stops working.

There are definitely situations where my generation will, on average, be less equipped than the older generation. I would argue it's a matter of experience, not of ability. Our experiences have equipped us to work with different tools and at different tasks than prior generations. That's normal, and not a sign that we're all nincompoops.