Bitcoin has the ability to be a currency of the world, however there is much more study and thus every country should be unite and pay attention for this matter that will it be made currency of the world or not, if not it only stays as it is, a online money currency and if it is approved by the governments in all of the country to be as a currency, surely many of us feels great and happy about bitcoin industry.

Bitcoin could become reserve currency if bitcoin price always increasing and reach $1million dollar. Bitcoin is digital gold and bitcoin proven as good investment and bitcoin security very high and hard to hack.

There is also the possibility of ubiquitous use of quasi-money, the growth of their turnover, exit from the informal sector and, of course, attempts to integrate technology into the banking sector. On the other hand, it is a speculative asset, a tidbit for venture transactions between major players in the market. All is far from unambiguous, therefore now it is best to observe the development of the situation.

Yes. Bitcoin needs to scale urgently if it wants to become a worldwide currency. While it's decentralized and highly unlikely to become the world's reserve currency, it could become a second alternative to fiat currencies for years to come. It will depend on how popular and widely used it will be around the world. At its current state, it's useless for handling transactions of all the world's inhabitants.

However, with the Lightning Network, I believe that Bitcoin could reach many people worldwide, without limitations. Depending on its technical aspects, it would allow Bitcoin to infinitely scale to millions of TPS without adding stress to the main network. Another thing that needs to happen would be the widespread adoption of the internet worldwide. Since some countries lack internet access, it'll be impossible for Bitcoin to be used there. This is one of the many things Bitcoin would need to address, to become a worldwide currency which is scalable, and most of all, unstoppable.
   
With good effort and dedication from the dev team, and the community, Bitcoin could become a solid reserve currency for all cryptocurrencies in existence to date. Just my thoughts

You have a point, because fiat was too hard to kill or remove from every country because it is the part of the history and it is need by community and country.  Crypto was volatile price so it is not good to become the focus money of every country.  It is like a fiat that the economy was too fast to grow and dump.  When everybody use this, every money in the world has the same economy or when the price dump, the whole world affect.

Interesting discussion ...
I think, I agree with most of our friends in this discussion group who disagree if Bitcoin will become a reserve of money in the future.
we know that real life has centralized money and closely records it with national and state life and politics.
So, bitcoin might just dominate the crypto currency, if that is possible. But not to match the role of fiat currency.

I am not sure about this. Bitcoin has the opportunity to have the first mover advantage. But we don't know for sure if there will be another coin in the future that will be better than bitcoin. No one knows. But in my opinion USD is doomed. However, it will be decades before we see the final demise of USD as a currency. And when that time comes, it will be a great upheaval that's for sure. But it is not in the foreseeable future. It will take decades. Maybe 2 or 3 decades.

I do believe Bitcoin will become the reserve currency or was introduced as a tester for the actual crypto based world reserve currency.  This is not all by accident made up by a guy named Satoshi.  I hope we are all passed that point by now. 

Maybe so. If governments and central banks continue to dominate the world economy, then there's no doubt that Fiat will always remain as the reserve currency of the world. However, if people decide to gain sovereignty over their economy, then they would use Bitcoin and other cryptocurrencies at a greater level than Fiat. Once this happens, then Bitcoin would become the reserve currency of the world, as everything will depend on its valuation for years to come.

If Bitcoin is indeed like Gold, then people would start investing into Bitcoin for the long term to protect their capital against the dreaded inflation of Fiat. Right now, Bitcoin is the reserve currency of all cryptocurrencies in existence, but we'll never know what will happen in the future. It's very unlikely that Bitcoin will become the reserve currency of the world because it's decentralized, but anything could happen.

It's only a matter of time before Fiat continues to dominate our very lives or cease to exist as a result of cryptocurrencies taking all over the world. Just my opinion