The "large vault" you're referring to is either old enough to predate the internet or full of safe deposit boxes for rent.
Even busy bank branches probably only need a vault the size of an armoire these days. People just don't use much cash.
The "large vault" you're referring to is either old enough to predate the internet or full of safe deposit boxes for rent.
Even busy bank branches probably only need a vault the size of an armoire these days. People just don't use much cash.