Because to my knowledge there are several countries in southeast asia that have not legalized bitcoin. And what is our endeavor for bitcoin in southeast asia to be legal like any other country (which has legalized bitcoin).
Will the impact be positive or negative?
What I think is, there will be both positive and negative impacts on south asian countries. Because as far as I know most of the south asian country government thinks that allowing the international currency exchange method will increase the rate of money laundering, but the thing is it also helps a country to help doing business internationally. So if bitcoin is allowed both positive and negative impact will take place. If bitcoin will be allowed, the government should imply some reasonable rules so that the negative impacts gets reduced. But what I see is, it is mostly positive to me.