It must not be double instead that must be x10 since 10 years of bitcin existence so we should not be amazed on that volume.people need to learn about crypto so thats why we need many atms for people familiarity on cryptocurrency and specially bitcoin
The growth we have gone through is actually quite impressive, especially if you take into consideration that operating an ATM gets more difficult instead of easier with how regulatory frameworks are slowly but surely taking shape. On top of that, regulators are more actively enforcing their rules/policies, so the risk of operating an ATM has increased exponentially.
The good thing about more ATM's is that competition leads to lower fees, and that's definitely what the ATM space needs with how fees range from 5-10% in some cases.