You should now go donate some bucks to Merlin Tuttle's Bat Conservation for your sins (https://merlintuttlesbatconservation.kindful.com/) ;) since they are by far the coolest mammal. Humans are OK too I guess... I have a really hard time believing any of these echolocation claims by individuals. I can see it maybe coming about if you're visually disabled and over a very long period of time it comes about as your visual cortex atrophies with no stimulation, but otherwise, even if you close your eyes and deeply focus, there are just so many extraneous noises in daily life that would be hard to integrate into a single synthesized whole that is actually meaningful in any kind of physical displacement decisions.

I didn't even know about that trope? Is that even a real expression or did you just make it up? Makes zero sense.

I'm quite confident that church mice are still poor, though they may be richer than street mice. :D