Show contentBitcoin is too slow to replace fiat. Unless there is a way to do the major optimizations to the system. Bitcoin can only handle something like 100 transactions a second while in the world there are tens / hundreds of thousands of transactions a second. There are other much more optimized crypto currencies. Perhaps in the future there will be something like Ripple or Ethereum for day to day transactions and bitcoin for your savings.If crypto started getting used then it could be completely world changing for the reason that it takes away power from banks to create fiat money out of thin air in the form of debt that most of the world is enslaved to.
Show contentMy humble opinion:While blockchain technology shows great promise, Bitcoin itself is the 21st century equivalent of the Tulip Mania. In other words, Bitcoin is in a bubble. If we ignore crypto speculators, Bitcoin is a niche market mostly populated by gamblers, criminals and darkweb psychos. They aim to buy and sell in Bitcoin, hoping to remain anonymous in transactions. But Bitcoin fails at this too: it fails to protect them as many arrests have shown in the past. So the cryptocurrency doesn't even provide a good service for its main market. Monero could be a better alternative for them, but it remains to be seen.Bitcoin's only saving grace is that it has been used in countries with failing currencies like Venezuela.Besides, it is needlessly complicated. If you're a regular guy who wants to buy something online without revealing identity, it's easier to get a prepaid gift card at your local bank or grocery store. It's way easier than learning about cryptocurrency exchanges, crypto wallets, and it's more comfortable than contacting cypto dealers online who probably do business with criminals.Bitcoin cannot function as a currency. Its price fluctuates widely and it's not stable enough. Imagine the poor sap who bought Bitcoin at $20.000 during its previous peak, only to see it crash below $4000 in value before he had to reuse the funds. Inflation rate of 2% is nothing compared to that.Crypto speculators can earn money, yes, but it's nothing more than gambling. Also, governments will never give up their ability to manipulate interest rates through quantitative easing ("printing money out of thin air"). Such loose monetary policy allows them to postpone the crash and to postpone necessary changes on the market. It's an amazing political tool. The cronies who are close to the newly printed money can spend it at original value while the rest of us have to pay the inflation tax.
Also it’s a bit of a stretch to say that only gamblers, criminals and such are the ones who really occupy the market. If this were the truth it would wouldn’t make sense for the likes of PayPal, Cash App, Robinhood etc to allow you to buy Bitcoin from their apps. Also, it would sound like something that billion dollar institutions would steer clear of, but that isn’t the case: https://www.bloomberg.com/news/articles/2020-12-09/jpmorgan-says-gold-will-suffer-for-years-because-of-bitcoin
If we ignore crypto speculators, Bitcoin is a niche market mostly populated by gamblers, criminals and darkweb psychos.
As you said in the original post that bitcoin cant be manipulated by government, I think its not true cause any government can put a ban on trading of crypto currency and it can be manipulated and also if some rich company or person tries collecting BTC the price can be manipulated and the total number of BTC in market are constant and is fixed.