I trust them with the little that I deposit on my bank account.

I only use them to store for small amounts and I trust more my wallet and holding that I've got in bitcoin. But for the banks, we have no choice unless we're living in a place like El Salvador where you'll see people using bitcoin and accepting it if you want to pay.
I only trust Bitcoin over fiat money because it is safer and I can benefit from bitcoin if I hold it for a very long time, but I am forced to use fiat money and banks because in my country do not accept bitcoin as a legal tender like in El Salvador.
I really want to be in El Salvador because I want to enjoy the advantages of bitcoin and I also want to buy everything using bitcoin.