Yes, but difficult to create in practice. Now, many ATMs are behind locked doors, so you enter inside, ring a bell, and doors to the outside world are locked, while you are accessing the machine. So, it looks literally like visiting some kind of prison, when machines with a lot of cash are guarded behind huge barred door, made of steel.

And instead of using its own cash, it can be changed into a meeting point. You would have two rooms: one for the buyer, and one for the seller. Then, two people could enter inside, and be physically locked for the time of transaction, they can transact through machines, and then walk outside, when they are done. Possible, but difficult to do in practice, but maybe some companies will try anyway.

Soon, identity will be always checked, no matter what amount will be transacted. In Europe, often the limit is 1000 EUR, however, you can be forced to show your ID, if any regulator will request it, when you do several transactions below that limit, but the sum would exceed 15k EUR per day, or if you try to hide your face, or do something suspicious. That's why many times people send someone else to ATMs, just to let them transact on their behalf (and it is very similar to selling your identity, when it is required to show your ID to register a SIM card, and have any working phone number).