There are ~20 ATMs within a 5 block radius of my apartment (NYC), all in small shops that have no place for an in-wall ATM, and this is in a relatively low ATM

There are ~20 ATMs within a 5 block radius of my apartment (NYC), all in small shops that have no place for an in-wall ATM, and this is in a relatively low ATM density area of the city; there are thousands more like this across the 5 boroughs. In aggregate these small freestanding ATMs are a huge business, it's unlikely they will harden their whole fleet by building in-wall installations.