There are always trade-offs, and some are quite bad. For instance...
10) Land lines: Though they’ve been on the way out for some time, the old analog, local loop telephone lines from central offices were by far the most reliable method of communication, especially if the lines were buried. These were the old style telephone lines and they required NO power at your home. That’s why you could use your telephone when the power went out. You can’t do that with the newer digital lines, unless you’ve got battery backups for all your home equipment.
9) Flashlights: Sure, you can use a cell phone in a pinch, but a REAL flashlight is far superior, and a headlamp is great if you’re working in the dark!
8) Calculators: You can use a calculator app in a pinch, but I don’t know anyone who regularly does any sort of critical calculations that would EVER rely on a touch screen for input, or the accuracy of a calculator app. Personally, I still prefer to use my HP-41CV.
6) Guitar Tuners: They work in a pinch, but for less than $20 you can get a tuner that clips on to the headstock of your guitar and uses the vibrations to indicate the note. Everybody uses those, except for critical situations, in which case, a strobe tuner is used.
5) Cameras: While smartphone cameras have gotten good enough for even some pro-am use, for maximum flexibility people still use dedicated cameras. Optical zoom lenses are still superior to digital zoom, and having a larger image sensor can give greater resolution, which is why many pros shooting digital still shoot medium format.
But the rest, yes. I’m fairly certain that nobody in the current generation would be able to fold an auto-club map. In fact, I’m certain most in the current generation wouldn’t have the faintest idea what I’m talking about when I use the phrase “auto-club map.”
Mark
You want to see a millennial have a complete “deer in the headlights” stare? Seat them in a vehicle that has a 5-speed manual transmission. Better still, tell them you have a manual “tranny”- and watch the smoke pour out of their ears, as they try to determine whether they should be “triggered” for your “hate speech!”
Oh, and the folding map - yeah, that would be a hoot watching them attempt to fold it correctly ... Hand them a lensatic compass and a set of caliper points - even better show.