Only 21 million bitcoins will ever be brought into circulation. Now this figure confuses people when they think of a world population of 7.4 Billion. How can is be enough to be a global currency? Bitcoin is not the same as the dollar or the pound however. Each coin is divisible to eight decimal places 0.00000001, it is more than enough for a global currency. For me the the key figure to look at is global smart phone usage, these phones can hold bitcoin wallets. In 2016 we had 2 billion smart phone users. Even if that phone figure remained at 2 billion and never grew over time it would mean that with an even split of 21 million potential bitcoins it would give each person a net worth of 0.0105btc.
Buying even a small amount of bitcoin will beat the average!
Yes.
Phone users have the possibillity to use the digital equivalent of fiat currencies in some countries
Yep, Kenya is a great example . If bitcoin use were to flip on M-pesa that would be a very big event. Bill Gates who once supported M-pesa as a method of helping the unbanked now has switched to bitcoin as it is open and has far lower fees.