I have never used a bitcoin ATM, nor have I ever seen one. All I know about it is what I've read from this forum and other sites, since I've never met anyone that have used it. So I would like to ask a few questions that I couldn't get the answer to online.
I have also not used nor have seen any around me. I do not think we have a lot in my country and even then, they are most likely away from me. But I have seen reviews from the internet. I have seen one from a train station before I think it was in Switzerland or somewhere in Europe. You can buy bitcoin from these ticket stations but of course the service fee is incredibly high.
1. Do they require any form of identification to use? Like a passport or ID card
From what I have searched, they would only require KYC if you reach a certain level of amount. If the amount is too big then probably you would need to present some personal documents.