Bitcoin has been around the borders of financial markets for less than a decade, but is slowly gaining importance as an alternative asset class.
Can the government of any major country step in and do the unlikely?
it depends. on its support and the willingness of the population
It is always depends on the government if your government against in bitcoin then they will ban bitcoin in their country but if they see how bitcoin help the country and they also want bitcoin they can not ban it in their country.