I do live in America and why you think milk costs significantly more from one week to the next I don’t know. Even if the price rises, we’re talking pennies per week. Far less than Bitcoin fluctuates.

I have no idea why you’re even trying to argue that the dollar fluctuates as much in value as Bitcoin because that’s just demonstrably false. This is the current fluctuation of Bitcoin value. If the value of a dollar changed by one percent in a day, that would be huge. Seven percent? That would be a disaster.