I see many drawbacks to a cashless system on these traditional retailers and businesses. The system is set in a way that it tracks everything and the fees have to be sorted out between the consumer and the retailer. On top of it, the middleman also has a share of the overall transaction. I prefer using cash for all kind of physical purchases, I don't buy the idea of hygiene :)
Yep, I really get annoyed about the middleman fees... even more when the retailer doesn't offer an option and just passes the cost straight to the customer.