Let's look at the Euro as a better¹ example, and let's take 2002 as the start date².
One year into its existence, a Pan-European Clearinghouse provided clearing services for participating countries.
Six years into its existence, in 2008, credit transfers and direct debit are operational across the SEPA area, meaning roughly that international payments are on par with domestic payments (i.e. no fees, 1-2 days wait time).
Eight years into its existence, SEPA transfers have become the dominant form of electronic payments in the Eurozone.
Since 2017 (fifteen years in), anyone with a SEPA bank account can send money to anyone else in the Area instantly³, and free of charge.
Throughout this time:
* The Euro didn't suffer hyperdeflation.
* There are ways to recover payments that were sent to mistyped IBANs and/or were sent fraudulently.
* Users who forgot their e-banking password can get a new one from their bank and not lose all of their assets.
In 2019, SEPA processed about 22 billion credit transfers⁴. That's about 700 transactions per second, or about a hundred times more than the Bitcoin network is able to handle. SEPA also handled about the same number of direct debits, something that BTC doesn't offer. Best of all: SEPA did all that, without using approximately Chile's annual energy use.
Bitcoin is amazing Sci-Fi, brought to life. It's a testament to Satoshi's genius, to a cyberpunk-y spirit, and to applying game theory in a system that actually kinda works. But given its immense costs for miners, users, and society overall, it's something that falls squarely on the dystopian side of sci-fi.
¹: Mainly because the Euro is a multinational project and not a national currency. And also a little bit because the US banking system is a bit of a mess. But mainly for the "international" aspect.
²: Technically, it was created in 1992 and could be used, in electronic form, from 2001 onward. Still, banknotes and coins were introduced in 2002, so that feels like a good starting point.
³: "10 seconds, or up to 20 seconds in some circumstances"
⁴: https://www.europeanpaymentscouncil.eu/what-we-do/be-involve...