I live in a third-world country, but I work remotely for some foreign firms. Crypto lets me get payments swiftly, easily. Of course, I also use traditional payment platforms like Payoneer, Skrill, etc, but getting payments in crypto (stable coins only) is far easier, and I can immediately convert to fiat.

A brief comparison between getting paid on Payoneer and a crypto exchange.

Payoneer - Sends invoice, client pays. Payment takes 1 or 2 days to hit my Payoneer account, and withdrawal takes another 1 day to hit my local bank account. If you withdraw on a Friday when the banks have closed, you'll have to wait till Monday to get your money.

Crypto - Sends invoice, client pays. Money hits my account immediately, and I can convert to fiat in less than 30 mins.

Now, I'm not even a fan of crypto because I think the field is spoiled with fraud, shysters, snakes, and all that...but crypto solves a good problem for me of getting instant payments. Notably, I only use stablecoins and abhor speculation.

Edit: Just to add, some mainstream payment platforms like PayPal and TransferWise are blocked in my country, and I've lost a significant number of jobs for this reason because clients refuse to use other payment options.

I think people in the first-world may not have much of a use case for crypto, but people in underdeveloped, unstable countries like mine have an important use case.