Why bit coin is a bad currency or store of value? If the grid is harmed then but coins may rise in value but if you still have access to your store, trading wil

Why bit coin is a bad currency or store of value? If the grid is harmed then but coins may rise in value but if you still have access to your store, trading will be as reliable and fruitful as eating gold to survive. It's too susceptible to an EMP attack and war (which brings down the infrastructure or grid). Paper wealth only appears on paper.