Kids are young and energetic and in this age it is an obvious thing, they are always up for learning new things. Teaching them about bitcoins and cryptocurrency would be the right decision. There are many factors why they should know about bitcoins and strategies. From a very young age, they get an opportunity to learn how to be financially independent.
I agree with your review, teaching children about bitcoin is ok, but don't let it be a pressure for them, we also have to give them the freedom to spend their childhood, the most beautiful memories can't be bought but if money matters can be found, teach the basics basic bitcoin, how bitcoin works, and how to store bitcoin safely, teach them gradually, slowly but surely.
If you feel that telling your children bitcoin seems boring for them or they feel pressure on knowing about this, why not give them some free satoshi or better tell them / teach them to earn some free bitcoins from faucets. This will automatically develop an interest in them when they see their wallet grows with real money.