Because of the value of Bitcoin, people will hoard it,
Take me as an example. I will invest 20% of my salary in Bitcoin because I think Bitcoin is very valuable and I believe in Bitcoin, so I think Bitcoin is worth investing in.
But if you let me buy something with bitcoin, I will hesitate and pay with fiat currency first.
Although people can pay in any way, will Bitcoin be your first choice?
Now the difference between fiat currency and Bitcoin is that one is inflation currency and contraction currency. Inflated currency (fiat currency) means that if it inflates, you want to get rid of it as soon as possible. For example, we use fiat currency to buy things, invest in real estate, cryptocurrency, stocks. And to shrink the currency (Bitcoin) you buy goods or services, or hoard it. This has no effect on the economy, except to reduce the monetary base and make the currency more scarce, so deflation is faster.
In my opinion, Bitcoin is a store of value, not a currency. There may be cryptocurrencies becoming legal tender, but not now, volatility and supply and demand need to be considered.
Fiat currencies are losing their relevance because they print out of control.
As soon as the US prints the next batch of fiat, other countries rush to do the same. This is the path to the depreciation of fiat currencies and the transition to a new financial economy.
Bitcoin is also not eternal, it can also die as soon as it completes its task. But it won't be soon
