If your government support crypto that your people will start to use crypto as daily transaction.
If there are a lot of demand, ATM business is profitable so just make sure that it happen.
Personally my government still forbid crypto so there is only 1 ATM in my country
It also depends on how BTC flows in your country/area. While Bitcoin ATMs are sure to be profitable in the first few years, but people are constantly looking on other ways to transact and interact with other users/holders. Imagine our current ATMs -- they're good and a lot of people are still using it, but they can usually interchange it with their mobile phones for paying, etc.
You can push through, but look for other ways to expand this idea fast so that you can invest the first few years of income into other things that are more stable that this.