I don't think games are a good tool for educating adults about new concepts, they are time-consuming and distracting. You could use them to teach kids, but why would you want to teach kids about Bitcoin in the first place, it's not like they will be using it till they grow up.
Adults play games to relax and have fun, and educational games generally have poor gameplay, so I can't imagine such game being popular.
I don't agree with you. Games are one of the most powerful ways to actually conceptualize new things. I believe there were few studies made that proven that learning gamification is better than just scanning through some text or listen to lectures.
Also why do we need to stop playing games if we're adults?
i agree, we should teach our kids on BTC basics, if everything goes as expected, it will be the currency and investment tool which they will use as adults, it is good to teach them while they are little for the future...