...they were experts with computers before I ever saw one.
Just so you know, the term "Expert" isn't a very accurate description of 99% of computer users. I've been a computer user since 1989, and there is still so much I don't know. If your kids use those words you mentioned, they sound like typical kids. Mine said the same sort of things. But my #2 son tried to install Windows 7 as an update for Windows 10... Which in and of itself, it's not a bad a idea to replace Windows 10 with Windows 7, but you can't do it the way he tried to do it.
Another good example of why I say that is a guy I used to work for. He had a PH. D. in Electronics and Electrical Engineering, was one of the original programmers of the US Air Force Flight Trainer, a simulator of an F-16 Fighter Jet, and he had 30 years as a Main Frame Computer Programmer. (The ones that were the size of a New York City block.) He bought a Computer Renaissance store, and hired myself and one of my friends, Bob, to work as PC Repair Techs. We could fix a lot of computer problems, but to call us Techs made us laugh.
He called himself "Dr. Dan, The Computer Man", and even with all of his past experiences, he know next to nothing about PCs. Bob was much better at repairing PCs than I was and he taught both myself and Dr. Dan how to do a lot of PC repairs. We found it kind of amusing that Dr. Dan didn't know such basic things as most PC plugs are color coded on the back panel (it's still that way today with desktops) or have internal connectors that can only be plugged in one way.
He had no idea what Bob meant when he said "Look for Pin 1", or "look at the connector and find the one plug you can plug it into." I learned that stuff in the first week of a CompTIA A+ Certification for PC repair class I took back in 1995. That's when I realized that no matter how long you've been a computer user, there's really no really such thing, in my opinion, at least, as a Computer Expert.
But on the other had, don't belittle yourself for things you've never learned. I used to work as a phone tech support operator for awhile, and there were some callers who didn't know how to even turn one on. My co-workers would make fun of them, and finally I got fed up with it and told them
"Did you know how to drive before you ever got in the driver's seat in a car, or like everyone else in the world, did you have to learn how to drive?"
There's practice tests for many
CompTIA Certifications, and I always recommend people to try them. It's a great way to do the "book learnin'". I recommend you treat that website like any other, and make up an Internet Persona and "disposable email address" to register for it. Because once you do, just like so many other sites, once they have your email, they will teach you the literal definition of Email Spam.
Just remember what Colonel Sanders said:
"If at first you don't succeed, fry, fry a hen." 
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