This has the added benefit, assuming both parties are happy to do it, that the business does not incur the overheads of handling cash, which is also not really

This has the added benefit, assuming both parties are happy to do it, that the business does not incur the overheads of handling cash, which is also not really free once you take into account things like security and bank fees. I am firmly of the view that cash is essential as a safeguard and something people should have the option to use, but as we've seen recently here in the UK, modern alternatives like contactless payments using a bank card or one of the phone-based systems can be quick and convenient, and they do not seem to have resulted in a devastating wave of fraud.