Want to buy your family food in the airport during your 12 hour layover? That's an unnecessary "fiat treat"
I wonder how one travels paying only in bitcoin?
Taxi ❌
Bus ❌
Car ? Petrol ❌
Airplane ❌
Bicycle ✅ (if I can find one for BTC)
Now use that to commute to work, take family to church. Get groceries. Visit your mum in another country. Go abroad for a holiday.