Dealing with it a register was a pain to say the least. You'll constantly have people demanding change in particular notes etc. You often have to watch out for

Dealing with it a register was a pain to say the least. You'll constantly have people demanding change in particular notes etc. You often have to watch out for people insisting they handed you a 50 so they can scam you into more change. Or get chewed out by someone for the wrong change when really they just dropped the note on the way back to their car. None of that can happen with a card. The card payments are nearly atomic, you paid or you didn't. In a year doing the work I only once had someone claim a card payment took the wrong amount and it was a very dubious claim. For cash i'd often I'd have to call a manager to request more cash for the float. Because the older customer base would spend their morning queueing outside at an ATM the buy the smallest cheapest thing to get change, which they only needed to pay another businesses that only dealt in cash. It goes without saying my views are biased from dealing with cash paying people.