Bitcoin remains to be adopted by every country in the world for various reasons. Here are my thoughts on why..
1. Government policies: Most government and financial institutions round the world seem not to want bitcoin cause of the financial freedom it gives to its users. They would want to control and tax the flow of finances of individuals and they probably fear the anonymous nature of its transactions. Some policies even go as far as criminalizing its use.
Government is the root cause, they never accept something they cannot control. Fiat will remain their favorite tool and will do whatever it takes to stop the growth of bitcoin, if they cannot stop bitcoin their power will be lost.
Once the government accepts bitcoin, I think other problems will be solved soon. If the government recognizes bitcoin and encourages people to use BTC, people will be more interested in it, fraudulent acts will be strictly controlled by the government and the bad news about bitcoin will be gone if the government accepts it.
How the government's react to bitcoin, will always affect the people's concept about bitcoin. Because people are mostly reliable whatever the decision of the government. So if the government continues not to recognize bitcoin, negative concepts about bitcoin will always be around. However, if the government starts to acknowledge bitcoin and even regulate it, all the negativities about bitcoin will slowly be out in the context because the government can control it. So everything starts with the government, and bitcoin adoption greatly relies from the government's decision.