I really doubt that we would see BTC becoming a dominant global digital currency that will replace the traditional fiat.
I don't know if it will be Bitcoin, but I do believe that a cryptocurrency will be incorporated within our lives quite significantly. I mean, the digital money era is upon us, and depending on how bad the banks mess up that switch over from fiat to digital money, it might push more people to the likes of Bitcoin.
Plus, many people might see that banks aren't needed as much once the physical element has been removed. We'll see. Also, with the recession we've got coming up, you don't know if there's going to be any more bank bail outs or potentially them going under, which could mean people lose money or trust in the banks, or both.
Bitcoin will likely be more adopted, and widely used once block rewards are significantly reduced, or non existent, and therefore volatility has also came down, and is a thing of the past. That's likely when you'll see mass adoption.
