Which state do you refer to in your post?
There are different attitudes toward Bitcoin across various countries. For example, in some countries Bitcoin is already officially considered as a foreign currency (e.g. in the EU). But even if it is recognized as a currency does it actually change anything? Besides, I think that you are putting the cart before the horse, i.e. in reality things will likely work in the opposite direction. At first, Bitcoin starts affecting the national economy and only then it may get recognized (whatever that might mean including outright prohibition). It is highly unlikely that any government is going to accept Bitcoin before it goes mainstream and gets adopted by a significant part of population