What are the reasons, why people use Cash or Credit Cards / ATM / Banks?
* Work offline 100%
* No fees.
* Accepted for Food Shopping & Micropayments
* 0 confermations time
* 0 exchange risks
* anyone is able to understanding of the value of payment
Probably in my country, bitcoin has not been authorized by the government as a formal means of payment and besides bitcoin access and infrastructure it self is lacking support. Therefore some people in my country still use cash payment system
just because the government doesn't support bitcoin does not at all mean that bitcoin cannot become the predominant means of payments in an area. bitcoin's strength lies in the people, the userbase, the population that decides to use it over the existing systems. sure, the government's endorsement may help, but the government isnt a necessary factor in determining bitcoin's success. if the people decide to use bitcoin, and the companies and businesses decide to implement bitcoin as a means of payment, unless the government rules that illegal it will happen.
Because Bitcoin is not completely used by the people so cash is mostly used by the people. So it will take sometime to get awareness about the Bitcoin and already Bitcoin is shaking around the world.
it wont take much time before we see how the world as a whole will react to bitcoin; we are now undergoing numerous forks to fix the scalability issue, and potentially could see widespread use within the next decade.