There has already been a lot of discussion on this topic, and despite the incredible growth in the number of crypto ATMs the fact is that almost 80% of all such devices are the USA. I have nothing against it, and the only logical explanation is that there is a demand for this type of service not only in the USA but also in Canada which together have about 8500 crypto ATMs.
The rest of the world has only about 1000 crypto ATMs together, which is almost an insignificant number if we take into account that there are billions of potential users who do not have access to any such device. It would be interesting to see data on the volume of trading through crypto ATMs in the USA - because although they are known as the most expensive way of trading, they are obviously profitable for owners.
i think the lead by US is mainly because of the characteristics of an ATM for purchasing bitcoin which doesn't look that interesting to people in other countries. US is leading in
invasion of privacy and since ATMs could provide better privacy for those who want to buy bitcoin they obviously have more demand in US than in other countries that don't invade people's privacy as much.