Number of BTC ATMs is unquestionably increases every day, but when you look at map of available ATMs approximately 2500 of the total 3100 is located in North America, 1972 in USA and 535 in Canada. I think that this fact speaks for itself, we are far away to see much better coverage in other part of the world. For instance one small European country Austria have 178 locations, and so-called most friendly county Japan only 11 locations.

Bitcoin ATMs by Country