If in the current time, all countries are switching to Cryptocurrency, the world economy may have a problem affecting it. But sooner or later, the world will have to move to Cryptocurrency
Yeah you are right sooner or later the world will use cryptocurrency as their legal and regular currency even in their local markets. The world is turning towards digital currency and as we know bitcoin is the leading crypto in the world, it will take over the market and will be the mainstream in the future. It will take time but the future is that of cryptocurrency.