Through an article came to know more than 70% of bitcoin ATM is located in USA. Rest were distributed on the rest of the countries. This means the business isn't diversified around the globe. It takes time, as people are not that aware as well as governments weren't that welcoming for the cryptocurrency and related businesses.
It all depends on where you live, because if you are in a place that has banned Cryptocurrency or Bitcoin you will never be able to find a Bitcoin ATM, but if you are in a country that has legalized Bitcoin, you will definitely find more Bitcon ATMs. there and it is very easy for you to make transactions with a Bitcoin ATM.