Earlier quoted context omitted.
Banking in the US is utterly ridiculous. In Europe, if you need to move up to 100,000E in a day, you can do it with a few clicks or taps, and maybe a card reader that they already gave you. In the US, you have to use a wire transfer is you're moving more than about $4,000. And wires cost a lot of money. And they aren't even instant even though they are billed that way. I had to move some money from one account I own…
You can now do an instant ACH transfer of 5000 or less with Chase. Takes about 5 minutes. I do it between Chase and BofA.
$5,000 isn't enough to cover rent in San Francisco.