I get you OP - I am rural and it drives me mad when people want cash. No cash point for miles here, literally have to drive to the nearest big two about 12 miles away and go to the Sainsbury at the edge of town and as for "go to a bank and get change" - hahahahaha!
No cash point in the village, used to be one a few miles up the road at the garage but the ATM got ram raided and the garage decided not to replace it due to the risk of it happening again. The Post Office can give cash for some accounts, but the opening hours are very limited.
My window cleaner wants cash and never tells me when he is coming, so I have no idea how I am supposed to get it to him. I'm fed up of chasing him to give him money.
My last cleaner took paypal but I binned her for a number of reasons (drinking my beer when she was supposed to be working, bringing her kids and her husband to my house, breaking things and not telling me, changing her days all the time so I never knew what she was doing, asking me millions of questions by text when I was at work then saying she couldn't do x because I hadn't replied to the text, etc - not to mentioned she was a bit shit, never emptied a bin, never dusted under things, never wiped the hob properly and threw away my cloths every bloody week, all wet, shoved in the bathroom bin, they are normal cloths, not disposable!) - the new one I can pay via an agency by bank transfer, no way could I remember to always have the right cash especially if it was an odd amount.
Couple of weeks ago the plumber changed a tap and at the end he said 'can you pay me cash, now', I said um, not really, how much is it, he looked a bit surprised that I didn't know (he hadn't given me a quote) and said forty five pounds, so I said no, I just don't keep that sort of cash in the house at all, can't you invoice me like you did for the last job, he said he'd rather not and could I drop the money round to him the next day.
Drives me mad that I end up running around after people because they can't set themselves up just to be paid! But when you live rurally it's really hard to get good tradespeople so you do it.