I've heard of cases where Bitcoins were lost because the owners passed away, or Bitcoin accounts have been inactive for years, and no one knows what happened to them. Remember, there's a saying that when there's less supply, there's more demand. Some people hope that all the past Bitcoin holders would pass away with their funds. They think this would reduce the supply of Bitcoin, and then they could make a good profit because the demand would be higher. But you don't want that for yourself and children.
If you want a brighter future for your children, it's a good idea to start educating them about Bitcoin early. If you're planning to save some Bitcoin for your children when they grow up, make sure you store it properly to avoid losing it or forgetting the access details. You wouldn't want them to inherit nothing when the time comes.
Rather than teaching them about Bitcoin because you want to, it would be better to teach them Bitcoin because they want to. I always think that it's good to let people close to you to know that you're engaging in Bitcoin or crypto. But don't persuade them to follow you. Let them be interested on their own cause they will come to you if they get curious and interested. Once they're interested, it would be easier to teach them about Bitcoin.