One big thing I can think of is that every time you use a credit/debit card, a transaction fee goes to a big bank/payment processor. With btc, it goes to a miner.
Other than that, how does it benefit you to use btc? I mean you need fiat to get btc, and then usually need to take fiat out. So where is the net benefit besides the fees being lost by the big banks/payment companies?
The benefit I have while I hold and use bitcoin is to not be controlled by the banks. You don't need fiat for bitcoin if you have a service/business that pays you bitcoin, also why cash in bitcoin for worthless paper?
We should have all only invested what we could afford so there really should be no need to be withdrawing to fiat. Especially at this low ass price. I will stay being in control of my own savings and not some thieving manager at the bank, "and its gone"