Why do they have Braille on drive up ATM's?

Because Ray Charles needs to know what the hell he's doing. Even without the assistance of his driver.

Because the panels that are used on ATMs are all made at a factory without ever knowing where the ATM will go. It would be more costly to develop special panels without the braille and try to determine which ATMs are going to be drive-up ATMs and then outfit them with the correct panel.

Because they all use the same key board as the walk up Atm's This Way they save money by not having to purchase a specialized key board just for drive through ATM's

Because the manufacturer or ATM machines made it standard to put braille on all its ATM machines.

You can access a lot of ATM's without being in a car. It is kind of silly to have 2 completely different designs.

It is for the blind person in the back seat (sitting on the drivers side) that needs to use the atm.

Because they made it originally instead of going into the bank when its closed, you can use the atm, outside of the bank on the side walk area

The keypads are all made the same because it would not be cost efficient to make half with braille and half without. This way they can produce keypads without the need to retool. (Which can be quite costly).

I drive blind all the time just take a look at my car ....