I don't get it either. How is this a viable business in this day and age (but I guess it is), especially if you need to KYC. Plus, you actually need to know quite a bit about how bitcoin works in order to use them and not be confused what the prompts ask you about. I've read somewhere that there are over 40000 ATMs around the world, not sure if this is an accurate statement though.

I am yet to meet a person who used one. If they would not require KYC, I'd give it a go, but otherwise what is the point.