What it would take for other countries to allow Bitcoin though, if currency is being primarily aimed and other government would just see it as an investment rather than a medium to pay expenses? Does it need to be more stable in price? I am quite happy that major countries supported these. Japan? They were the one that used Bitcoin to its fullest, so it is like a lock-in that Bitcoin is stable already there.
By stability I want to assume you are referring to well established. Actually this is something we will get to see with bitcoin being regulated in most places, Still we cannot have one single global regulation as each country will definitely come up with their own form of regulation and how they wish to go about it and some others will just be silent on it as it is already. Whichever way though, regulation by some of those in the top developed countries will bring trust and maturity into the system.
Hopeful this positive trend will be introduced to the bitcoin soon, we will see the regulation of bitcoin in future but a bit time will be taken, slowly gradually bitcoin will become famous d it will be legal.
First, bitcoin is not being regulated everywhere as you have said. I believe there are so many countries that are actually not officially regulating it yet while just few are. Comparing the number of those who have just been silent on the whole thing, I believe they are more than those who are even condemning it. The thing with regulation for sure is that it would bring in new level of growth as we get to see more potential investors coming in.