The tips for local transaction... Your post is so helpful for many people, i hope i can learn a lot about transaction and bitcoins ,, keep posting! 

Bitcoin is not going to destroy a country and can't become a currency of one country as you say. But i think this digital currency can help some people to make money and live better on their respectively country.And also i agree with your statement 

i think the use of bitcoin will increase on the future, because everyday so many people interest about bitcoin, they're also learning about this currency and will be more and more user too. that's all my ideas about the future of the Bitcoin