People are slow because people are not used to fast change. They are used to what they know and easily create habits that they won't let go. As soon as they see examples of betterment it will change.

And then there are the unbanked and there is a huge potential in adopting this new and disruptive technology.

http://mckinseyonsociety.com/half-the-world-is-unbanked/

It is the easy financial inclusion for the unbanked and it's decentralization of this type of money that makes it such a revolution in social organization.

Thanks for this post. It helps us think about e.g. mass adoption. And I think it will just take some more time and then suddenly it's there.