Now, there is a competing narrative that bitcoin doesn't even need to take over as a currency. Rock solid store of value that is impossible to debase is more than enough to still be worth at least an order of magnitude more. It's a technology to protect savers from having their wealth stolen through currency inflation. Wealthy people already protect themselves with a diversified basket of assets and treat currency like a hot potato. But the poor and middle class often don't have the knowledge, time, or access to protect their wealth.
The trend of widening wealth inequality in the US seems to have taken off right around the time we abandoned the gold standard in the 70s. It used to be that everyone could just save their currency and that was a really good store of value. Now savings accounts yield ~0.5% and you have to put your money in more risky assets just to preserve your value.
It could be that we end up with a world with both bitcoin as a reserve asset, where you sweep all your excess cash that you don't want to invest, and government fiat currencies, which they can continue to use for stimulus and to print their way out of debt, but without debasing savers to do it as they are now.