The existence of ATMs in several countries is only to overcome the problem of difficulties in transactions because when making a transaction not everyone receives payment in the form of bitcoin so that this ATM is very necessary to convert bitcoin into money.
I also think they have bitcoin atm because their government are open on blockchain system so that corruption rate will decrease. The use of bitcoin is very efficient and not new when people are into it, just so happen that there are lots of scammed where bitcoin becomes the bait and lots of people also are against to it.