Teaching your kids about Bitcoin maybe not a bad idea. But be mindful what you teach to your kids, it depends how old is your children. If you are planning to teach Bitcoin to your kids below legal age maybe you should start by teaching saving money and how to properly spend their money. And when they are in legal age you can teach them about investment and start to teach them more about bitcoin technical and operational.

If you are getting to old to handle trading or mining, you can give your wallet to your children so that they can continue what you started. Just like a heritage to your kids. Just teach them to not to be greedy.