I don't have any kids, but I'd certainly teach other kids to use Bitcoin. They seem to be quite fond of technology these days, so a kid using Bitcoin is certainly beneficial for the cryptocurrency in terms of mainstream adoption. The good thing about Bitcoin is that there's no minimum age required to use it. Without the enforcement of KYC, kids can use Bitcoin to buy stuff online just like they would with cash (paper money) at a physical store. Imagine P2E (Play to Earn) games paying BTC (satoshis) to kids. It will be a complete game-changer.
By teaching them the basics of sending/receiving Bitcoin, kids will probably ditch Fiat altogether. Who knows if the new generation becomes completely reliant on digital payments? Just my opinion
I do not really find myself as a person who can spend time with children right now, if it is like for looking after them then it is fine, but if it is teaching something then I am not good at it. Thankfully my wife is a teacher so she can handle that part when we have a kid. But at the same time, when I talk with teenagers I realize something better, the fact that they are so advanced compared to how I was during the same time.
Between the technology being improved, and the lessons being learned online, these kids realized they could study anything they want online. I mean just wikipedia alone is great, they are researching stuff they wonder, and that's great. So, if you teach them even the basics, in a year they could be very well versed if they are interested.