I guess you are referring to marketing somehow. There is actually so much word of mouth can do. It is more like a community and if those around you understand the importance and benefit you are deriving from the crypto world, it just keeps spreading on and on and then you realize eventually that the users are increasing by the day.

We need to consider that the population of bitcoin users and holders have drastically increased over the years and when development kicks in where we get to see the process where we can use bitcoin as a currency in its fullness, it would even make it better.