It is not about knowledge but mostly about necessity. Crypto currency services are more popular in markets and societies which cannot longer trust their own FIAT or banks, so they seek for alternatives in exchanges, which are the closest thing one can find alike a bank for Bitcoin and altcoins on the internet.
Think of someone living in one of the developed countries, they would have no relative reason to move onto crypto, because they already have banking services which provide them with most of the things they think they need. That is not the case in Argentina, Nigeria and Venezuela. Places with big crypto volume and adoption in their own regions. Something very serious would need to happen to the main FIAT of the central economic powers for their people to move even faster into crypto, prompting the creation of crypto banks and treasuries.