I so see bitcoin as a global currency already, as i can travel almost all countries and i will find an atm or a local trader to exchange my bitcoins for local currency. If i dont wanna those i can get a debit card and spend my bitcoins, i do believe those card does work as others cards. Besides that anyone can send any ammount between countries without problems, people does consider bitcoin a currencie as well a payment processor already, isnt recognized from the countries yet.
Bitcoin are getting more popular to some areas and it won't be long enough that most of the people worldwide soon will be able to use bitcoin and use it as an alternate currency.
I think it will take a long time, I think the adoption of bitcoin is running slow it is a problem, but you do not need to worry, bitcoin will continue to be popular in the future
took a little effort from the user if want faster bitcoin popular