They wanted to charge me a cover $5 cover charge f...

They wanted to charge me a cover $5 cover charge for both me and my husband when we weren't there for the band nor were we going to be seated anywhere near it. I was contemplating paying it, so I asked if they took debit and they said no it's cash only. How is a restaurant cash only? They may want to consider some other alternatives; like Venmo, square...something. I have no interest in going back. Never even had the opportunity to try their food.