I have never bought bitcoin at an ATM because in my country there is no bitcoin ATM. but according to CoinATMradar the number of bitcoin ATMs is always increasing. so far the number of bitcoin ATMs worldwide has reached 5588. This proves that more people and countries are accepting bitcoin as a currency. and in my opinion the presence of this ATM does increase the adoption of bitcoin. but unfortunately the cost of making transactions at ATMs is more expensive. so that the majority of bitcoin users prefer to do p2p transactions because they are cheaper.