In the world there are more than 11 million Bitcoin wallets.
April 20, 2017 Special research centre of the University of Cambridge conducted a study of the current situation on the Finance market, Blockchain and crypto-currencies, the results of which showed that the worldwide recorded from 5.8 to 11.5 million existing Bitcoin wallets.
In 2012, existing cryptocurrency wallets were recorded 5 times less. The total number of Bitcoin wallets, including the "non-working", in 2013 amounted to slightly more than 8 million. However, three years later this figure has increased by 4 times, as of 2016 the number of cryptocell was equal to 35 million. The information provided by the University of Cambridge, is the first complete study of the modern state of the cryptocurrency industry, given its all multifunction units (trading, mining, the Blockchain).
Geographical context 80% of all operators of Bitcoin wallets are concentrated in Europe and the USA, but this part of the world accounts for only 60% of the total number of cryptocurrency users. Note that nearly two-thirds of crypto-currency users themselves have control over their private cryptocode using "go" in a personal Bitcoin wallet. About 12% of the total number of users willing to provide their personal cryptogamie, for the purpose of security of its own assets, operators of Bitcoin wallets.
Blockchain mobile applications used by more than 65% of the entire cryptocurrency industry. http://fdlx.com/tech/90077-v-mire-funkcioniruet-bolee-11-millionov-bitkoin-koshelkov.html
I guess if more countries approve bitcoin as a currency, the wallets will reach billions.
Most likely this will happen!!!
Now the multi coin wallet solve many problems.
Yes