There is no excuse for this sentence any more. BTC is not remains unknown things. Anyone who claiming that he don't know about btc will lie or will be ignorant man. I don't see any site where crypto news not found. Youtube, Facebook, Twitter, Telegram showing ads of Binance, Bybit where btc remains on the top. Whole world started adopting btc and if some ignorant people want to be ignorant in fast technology era then there is no solution for such kind of people except leaving them alone.

I am living in a country where devolping is not like Europe and our education level is low in current stage and crypto buying and selling is also not allowed but here 80% people  knows the importance of btc and most of them holding for long term while people of devolped country will be more mature.