Nice article with pictures of how ethereum is gaining prevalence in the wealthier regions of the world. As most of us know, this is only the beginning for ethereum and digital currency and it is an unstoppable force.
http://www.cnbc.com/2017/07/19/ethereum-takes-over-digital-currency.html
Although it is taking longer to gain traction in the poorer parts of the world, it is only a matter of time before most of the world is using some type of cryptocurrency.