10 dollars is a steep confirmation price but if you have a life savings of, say, the equivalent of a few hundred or thousand USD that you hold in cash and your local currency is rapidly inflating making it worthless, btc is an amazing life raft that you could put your money into. If you are able to migrate and get a high paying job and still have family somewhere far away in the world that you want to help, $10 fee is not that crazy to send them monthly payments that they could then trade for cash or food.
Then there are obviously the side chain solutions, lightning network, or even just using exchanges to transfer btc to altcoins with faster settling times and lower fees if you really do want digital cash.