It isnt just about advances in technology though is it.
Over the last 30-40 years there has been a massive shift in basic technology comprehension.
From most people, to at least some extent, being able to understand how the technology that surrounds them works to it becoming utterly incomprehensible for the vast majority of people.
Ask any teenage Boy (Yes, Boy. It was the 70's and Girls generally were not interested in such things

) from the 70's how a TV or radio or motor car (Or space rocket or camera, or x ray machine or, really rather a lot of the technologies on which society depends for its existence)
actually worked, and he would probably have been able to have made a pretty good effort at doing so.
Ask any teenager today how their phone or i-pad (Or even the other things I mentioned earlier) works and you will almost certainly be faced with a total blank (Hell, even I only know the modern gadgets actually work to a very limited extent, and I am good at this sort of thing)
We were a generation that grew up with thermionic vales. That you could
actually see working and understand how they worked. We were the generation that built crystal sets for fun and
knew how they worked. We built electric motors out of cotton reels and
knew how they worked.And so on.
People born in the 60's might well sometimes find figuring out how to use the latest smart phone a bit of a bind, but mostly that is because we are simply not interested, Nevertheless Nobody from the 60's or 70's would be April fooled into believing that you could download an app to make your phone waterproof.
We know it is just an electronic gadget, with all the limitations that go with that. For todays youngsters it might as well be magic. There is no comprehension as to how it actually works.
And because of that, there is no real reason to believe that an app might not be able to make a phone waterproof.
Overall. I find this shift in comprehension deeply disturbing. In the space of a couple of generations we, as a society, have gone from a situation where most people had a reasonable basic knowledge of how the world around them actually worked to one where, for most people, it is utterly incomprehensible...
How does <insert gadget here> work?
Because, Computer...
If you picked half a dozen teenagers at random from the 70's and put them on "Scrap Heap Challenge" I reckon they would do pretty well
Id love to see what would happen if you picked half a dozen of today's teenagers at random and put them to the test, there is a reason why it is mostly older people who play the game.
Lord help us come the Zombie Apocalypse (Or any other more realistic crisis that disrupts the use of modern technology. EG, just how bad would the consequences of an EMP bomb be??)