I have only seen it in major cities for now, but the trend will accelerate for all of the reasons given in the article. With chains like McDonalds replacing a

I have only seen it in major cities for now, but the trend will accelerate for all of the reasons given in the article. With chains like McDonalds replacing a large portion of the cashiers with automated ordering kiosks the next big push will be in marginalizing cash purchases and increasing the inconvenience (e.g. ten kiosks available or you can wait in a line five deep to order and pay with cash), but within a decade I can see the option for cash purchases being the exception and not the rule. It will happen much like the ongoing transition to the expectation that you will be carrying some sort of mobile device.