This is something that should be ingrained and drilled into every child from the start. When they learned enough to read, it is time to get them up to speed on looking up materials.
Sure, school should do this, but most teachers don't care. The motivation for most teachers is to get the student to the minimum of passing a knowledge test. For obvious reasons involving their livelihood and size of their classes, students are on their own for extended learning. It's inspiring for some teachers to see at least one excited student which could lead to better instruction overall, but that is far and few.
Regardless of student, all students must be required to look things up and not just in a book. This is career defining. The best searchers are the best workers.
When you find something you don't know, look it up on Youtube or Google. Add keywords "intro", "crash course", "eli5", or "explained" to your search terms. Maybe even add "site: reddit.com" for anecdotes, opinions and comments on a variety of everyday things.
A circuit breaker is something you have to interact with at some point because maybe electric faults or outages. Would be great to understand what's going on to trip it instead of flip on and watch it flip off again. Maybe you did a recent drilling in the wall that tripped it days later. There are explanations on YouTube so you can learn what's going on, so you know if you can fix it yourself or call an electrician.
Maybe you don't understand how deep sea creatures breathe underwater or you want to cheaply fix your sink. There's free knowledge all over the internet. A "tiger" parent may want to put and supervise their child on MIT OpenCourseware to bootstrap their child's knowledge and get ahead of the pack.
It all takes a lack of knowledge, a propensity to look up and plug knowledge holes and a web browser.
I can only do software engineering today because I learned to look sh*t up very early along with a curiousness for how software was built.