So what? That is, like I said, 100% by design. In order for currency to be useful as a currency, it should inflate gradually. We're slightly high right now and were even higher for a while 40 years ago, but in neither case has the system broken. Sellers and employers know what to expect and how to pace prices and wages in a sensible way to keep pace. When the system starts to buckle, policy makers have mechanisms to fix it and they have. Bitcoin fluctuates wildly and its price is 100% speculative. It is neither backed by commodities (ie gold standard), by promise of dividend, by equity, nor by the "full faith and credit" of a nation. It's pure supply and demand where supply is arbitrary and demand is 100% elastic and could drop to zero at any time for any reason. Consider the recent pandemic where GDP contracted at an apocalyptic rate for a few quarters and yet policy makers were able to bail out both employers and workers with the help of massive fiat monetary assistance. Poverty actually decreased in the US during the pandemic.
What would that 70 year old say if they bought a house 10 years ago for 400 BTC and solid it today for 5? On the flip side, someone working for BTC 10 years ago might have expected a salary 50 BTC a year and someone being hired today might be 1 BTC a year. Is that a better situation? While the price per coin skyrockets, the only sensible position is to hoard it and never spend or invest anything. That would be a disaster.