What country has the banking infrastructure to support easy $50k-equivalent withdrawals from a local Bitcoin exchange, but not for receiving wires?
US Bank -> Wire -> IBKR -> Wire -> SG Bank (or whatever)
Usually this takes at least 5-9 business days end-to-end. (Wire delay, withdrawal hold, wire delay on the other end.)
A bitcoin transaction takes a few minutes, and if your counterparty doesn't want Bitcoin, there's probably an exchange with an entity in the destination country, so you only need to wait for the second wire delay.
Some banks charge up to 2% for currency conversion, but surely that’s better than the 10-15% lottery involved in Bitcoin? Unless you want to have a gambling aspect to your invoices.
My suspicion is that your mental model for comparing volatility and loss is incomplete, given that you didn’t mention anything about the size of the transfer compared to your wealth, or anything else about local risk-aversion/utility convexity.
That’s fine, but I don’t think it aligns with what most people want from their money transfers.
Your story about it being easy and cheap to do via remittances or whatever is pure fiction. Any traditional mechanism is at least two of slow, expensive, and onerous.