Earlier quoted context omitted.
It a uniquely American stupidity that somehow everyone just lives with. The concept of overdraft doesn’t even exist in normal consumer accounts anywhere else in the world. The first thing I do when I open an account here is to disable overdraft - but then you have to pay return cheque charges by whoever was trying to charge your account.
The history is that people used to write paper checks, and merchants would charge a bounced check fee. Overdraft _protection_ was actually a banking feature which would save you from the cost and embarrassment of a bounced check. There is very nearly zero usefulness to overdraft protection in a real-time authorization world. Nobody charges a fee for a rejected debit authorization. I suppose merchants might charge a r…
It's more handy for gas pumps, but less transparent. It stops before your tank is completely filled, but doesn't say why. You can hear the difference if you are standing there while it fills, of course, but other than that you may be confused why it slowed down and stopped exactly at a certain amount and won't go any farther.