Yep. When my daughter was much younger than a 4th grader, it was hard for her to understand monetary value, so I explained it using bananas, which get spotty and then rot in real life, and fictitious "super bananas" which only get better and more delicious with time.

I told her that, for this analogy, bananas = fiat, and super bananas = Bitcoin.

Me: "How many super bananas would you want?"
Her: "As many as I can get!"
Me: "Great! When would you ever eat (spend) them?"
Her: "🤔 Only when I REALLY need to."
Me: "Good. How many rotten bananas can I give you for 1 super banana?"
Her: "🤔 Infinite...? No, wait! There's no amount you could ever give me!"

And that was when I knew that she understood Bitcoin.