Knowledge of course really support in everything, cryptocurrency knowledge can be available everywhere, friends, families or thru school. But if you got knowledge it will be better because it's free without any cost you can be smart. Google right now also save many things about cryptocurrency, of course you can access it easily.
the right answer, on the internet and especially in this forum we can get knowledge about cryptocurrency for free, for example, I know cryptocurrency from fellow schoolmates, and then I joined this forum last year, I got the lesson all in this forum, if crypto used as a world currency, of course it will have a negative and positive impact, a negative impact when there are unscrupulous people using bitcoin to transact money laundering positive impact to make producers and consumers around the world in terms of purchasing goods or payments