When smart phones and the internet became required to do anything.
I agree, many of the skills those of us over the age of 40 or so had by the time we hit high school are now deemed to be not needed by the latest generation of college graduates. Hell, I just spent almost a year redesigning a scale hydroplane. When I mentioned it in another forum, here in RCU, I was asked why I wasted my time rather than just order one off the internet. Since the boat I'm building is a "one off" hull, there's no one that has a RTR hull. This means I have to build which meant redesigning to make the boat accurate and in the sizes that I want.