Four other countries which may follow Japans footstep with bitcoin.

Zimbabwe:

From 2003 to 2009 the country experienced hyperinflation as the Zimbabwe dollar became worthless. Since then the country’s citizens use multiple types of national fiat currencies such as the yuan and U.S. dollar.
The people have realized that they don’t have the problem of the currency eroding and perishing like you have with notes. It’s a system that allows for privatized banking. Effectively, the bitcoin system is both a currency and international payments platform.

India:

The big notes are taken out from circulations to prevent fraud but the public and private sector have not accepted this decision well.
Even India has been one of the countries which been growing in the past two years in using bitcoin before the mentioned event above.
Considering these two points together we can see a great demand for bitcoin in the near future.

The first proof existed when Exchangers reported that in some particular days they were selling bitcoin over $100-150 USD higher than most global rates.

Venezuela:

With the inflashion to the roof and political problems you were able to buy bitcoin cheap from localbitcoins right at the start. But not people are going for gold, silver and the major part of interested people are going for bitcoin as there is no state control.
In mining bitcion is one of the countries with a huge number of investors and localbitcoin has had one of its highest selling bitcoin records from Venezuela.

Turkey:

Has show a great interest since start of 2016 to invest in bitcoin and after the military coup and number of exchanger are reporting a growing and stable accusation of bitcoin from the population.
The tourist industry has also declined and the official money (Lira) has lost its value with all these events occurring has led to look for other means of investment.

Conclusion:
With the actual economic situation people with whatever type of financial possibility prefer cryptocurrencies and peer-to-peer transaction where the demand has the first thing to say.

This is even more evident when we can see considerable growth in other coins apart from bitcoin.