While this is true, there has actually been no point since Dogecoin's inception where buying Bitcoin was the better option (denominated in fiat, of course).
And before you lecture about the function of fiat currency, remember the bottom half of society is forced to keep their entire net worth in cash because they are in a continuous financial emergency...
The bottom half of society also hold large amounts of debt, one of the key functions of inflation is eroding the value of that debt. A currency like Bitcoin does not provide for this.