"All UK crypto-currency cash machines (ATMs) are operating illegally and must be shut down, the Financial Conduct Authority has announced. Crypto-ATMs look like regular cash machines and let people buy crypto-currency, such as Bitcoin, using their bank cards."
It's funny how the government will crack down on things like this. Yes, they have risk (everything does). Put the warning out there and be done with it. Hell, put a sticker on the machine. If you do it, you were informed, it's on you. It's no different than playing the stock market.