40%-50% of people in the Earth were owned bitcoin by 2020. Because most of the people were still scared to scammed, they always thinking that online or digital transaction were scam especially to the old one. But I'm still hoping that most of the people in the Earth were accept the value of bitcoin.
if my calculation is right. maybe only 1% of whole earth population using bitcoin right now. so don't expect for 40 to 50% using bitcoin.
if 5% of whole world use bitcoin by 2020 it would be a very big achievement.
as you said lots of people already scared of bitcoin.
I think that not even 1% of the population on earth is using bitcoin right now, it is true that the population is rising everyday but that does not mean that by 2020 we are going to reach mass adoption, and that goes to the reason that bitcoin is not something that is accessible to everyone.
I mean it has a price of $1500 normal people wont invest that much money into it, and also bitcoin has a limited supply, us right now with the current user rate has mine over more than half the bitcoin so imagine if more people use it we will have nothing left to mine and cloud mining companies will fall.
1. You don't have to buy a whole bitcoin. The return for a 1000$ invested is the same.
2. For half of the western world 1500 is less than two weeks pay.