If you are sending $850 to your family in Mexico, maybe high fees suck.
Or maybe Western Union’s 10% sucks. Maybe you don’t want your family extorted when they leave the Western Union in their home town. Maybe it’s worse to wait three days and pay 35% for your bank to push the transaction through. Maybe you’re “illegal” and cannot have a bank account.
Bitcoin is better, faster, and cheaper, even with shitcoinery on board.