My answer is NO. bitcoin is very secure and is supervised the transaction by that you call MINERS. They are the one who accepts your transaction so no one can hack your account
Its a nonsense question. Bitcoin is gradually rising from the world. Its a success for all of us. There is no stop in doing Bitcoin. Just remember why you join Bitcoin
Its a bit questionable?. But I think it can. As I watch some articles about blockchain there is a way you can donate or provide for homeless people using Bitcoin.
Japan is a 1st world country and its very popular country in Asia. One of the best in industry of robotics. I never doubt on why is Bitcoin is popular or big in Japan.
Aside from US many investors used bitcoin as a transaction for their business such as in Asia. Its a way of easy and formal way of transferring money to other person