Why not? I think so too, but who knows? many events can happen in digital as well as "real" financial world in the next 5 years. Whatever happens, we must remember that we are now living extraordinary times of change in the way human beings are connected and interact. BTC is a part of it, and maybe a bigger part than what we're aware of.
You're right.Bitcoin will be the best worldwide cryptocurrency when the right time comes especially now that it is gaining more popularity all over the world,and with that all people from different races will be aware already of its existence and potentials and soon they'll gonna use bitcoin of course.And bitcoin being a digital payment system is definitely coming since we are living closely in a digital world brought by new technology.