Initially Bitcoin only growing rapidly in developed countries, but now there is everywhere, this progress is running normally.

"Onelife, onecoin" very successful in Africa, though wrapped in HYIP. In a third country/fourth, all understanding bitcoin begins with gathering business/member get member, and doesn't require online (only a few people who should be online), and as a result almost all of them can buy supplies pc/internet on their own. So all will automatically fill, we shouldn't be confused, They are in third country/fourth that will find answers themselves.

As of now we are still just few who knows about bitcoin even we are growing rapidly do you think more people are staying in bitcoin.. they are also decreases not only getting more bitcoin holders there are also people who are just staying away in bitcoin after they experience bad things about bitcoin..

Maybe it's true but it requires not a little number of years I don't think population of poor countries (I mean the level below average point) will wait for it.

It will take more than a year for people to use bitcoins I've seen many people still doesn't even know how to use bitcoins or how to use wallet or maybe they're afraid to loose money as bitcoin is digital currency you can't blame anyone if your bitcoin is lost so it will take some time.

Especially in online payment systems can be used very comfortably. Today we buy everything online. For example, I can use bitcoin to migros accept payments. I can buy what I need for my kitchen shopping on the internet. Once payments made with Bitcoin have been approved, orders can be brought up to the door.

That's another reason - trust. In our era when nobody is prevented from cyber offence we can not make guarantees that even our wallets are totally safe when even big companies experience problems from hackers.

I don't think that it will take much time to got famouse . Because about three years ago in my community , No one knows that what is  bitcoin ? , Now about 80% people not in my community but in whole country knows that what is bitcoin , So I am guessing that it will not much time to get famous more for everywhere .
Second thing Earliar it was less secure but in the presence it is much secure then Earliar and also in the current time the price of payment transactions are more than was Earliar .
So.we can say day to day grow in the technology the network of the bitcoin going again more powerful and probably it will available everywhere in some years .

no doubt that bitcoin is not available everywhere because the main reason is the laws of the governments of different countries .
If you will try to study the legality of the bitcoin in the google than you will find that the most of the countries are not supporting bitcoin as official or safe to use ( since it is another matter that bitcoin is safe and trusted in our views ),.
So people are officially not accepting bitcoin due to this reason most of the places in the world are without bitcoin .
But I think it may be possible in the future those countries who banned bitcoin directly may remove thier ban from the bitcoin And also it is possible that the popularity of the bitcoin forced the every country to accept bitcoin officially .
If there I'd any probably my for this than it will happen in 4- 5years

Most answers here will be speculative, However, considering the fact that no government will still not allow a decentralized virtual currency to control their local exchange. Some factors/purposes in the future will be unavoidable by govt about bitcoin or other new cryptocurrency. Factors/purposes that obviously fiat cant offer and they need. The interest will start with the first world countries down to the third