I seen some big country started to legalized bitcoin like japan, but i seen some country was ban bitcoin too just like what i hear about south korean and issues about russian will ban bitcoin in next month.
But why they ban bitcoin and some country still not make bitcoin legal in that country ?
Fear.
The officials fear the main instinct. They are afraid for their work, they are afraid of responsibility. There are accusations of corruption. They are afraid of their owners-sponsors.
All these fears they cover with care about citizens.