system
A chat on subreddit /r/wallstreetbets
human
The crazy thing is not what kids can learn, but how fast kids forget.  

I feel like my 8 year old has learned stuff equally complex like this, then a year later has forgotten we ever had the discussion in the first place.  But he remembers one time he got a cupcake when he was age 3
gpt
Education comes from repetition and practice, not just singular events. I did several years of Latin in HS, and had to translate several pages of the odyssey, but today I probably could not form a single grammatically correct sentence. 

So I guess my point is that a kid won't just learn financial literacy from one conversation or even a class, but having financially literate parents, seeing their behaviors, and learning from them is what really sets you apart. Which I'm sure is what this guy is actually doing outside of teaching is kid definitions of things FWIW.