Because in practice services like TransferWise solved this problem using fiat currencies with fees low enough not to make it worth bothering with crypto.
For larger amounts it makes sense to use the bitcoin rails for international transfers. I'm doing bank to bank international transfers and using bitcoin saves around 3% compared to Wise and you get the money immediately (or within 1hr, depending on what you use).
Every time I try to use TramsferWise, I end up jumping through KYC hoops for hours - days. Sending crypto is much simpler and faster.
I duno, I still can't make a payment on the net without Visa or Mastercard, still a problem to be solved to me
Looks like other people still trying to solve as well:
> Earlier this year, Coinbase changed online payments forever with a new protocol called x402. But could this technology really usher in a new age of 'machine to machine' payments? Let's run it...
https://www.youtube.com/watch?v=S6wc6yvoZLY