Bitcoin is legal by some countries but some countries still not accepting the bitcoin.
What you think is Bitcoin become legal in all countries?
imagining legal bitcoin in all countries is great fun. we can travel and shop anywhere easily because it has the same currency. but in my opinion this is difficult because there are still many people who do not know bitcoin and countries that receive bitcoin as a means of legitimate payment is still small. then now some people still like to use fiat money for everyday shopping.