Yes I also think that bitcoin is becoming a worldwide currency and more people are interested to know about it, how they can treat it.
I think this is impossible, we all know that Bitcoin don't have stable price, even though lot of people now are in bitcoin world, I think they still prefer to use Fiat currency in terms of legalization. On the contrary if Bitcoin becomes global currency, maybe that time it's already have a support from each government and you don't have to worry anymore.