In the early days when I wanted to buy some bitcoin I used localbitcoins who charges about 1% commission I think. Once bitcoin exchanges began to appear I started using them because I was able to purchase btc at a fraction of a percentage. They recently installed a BTM machine in my neighbourhood so I decided to give it a try and I was shocked by two aspects... Firstly the BTC ATM asked for my fingerprint or a scan of my ID which seemed OTT because I was only buying $50 worth of bitcoin. Secondly the BTM fee for this transaction was 10% which seems ludicrously high. Considering how intrusive and expensive BTM's are, I cannot understand why anyone uses these machine. Can someone please explain why they are popping up all over the place?