Oregon recently eliminated their mandatory gas station pump attendants. It seems most people considered that a good thing. For those that prefer the premium experience of having a human cashier, it seems that for now, they're still easy to find. For establishments that regularly expect to have large orders with dozens of items, they'll probably continue. It seems there's less to gain for large complicated orders.
Or perhaps it will go the way of smoking in restaurants. Some people definitely preferred it, but in the US anyway, it's pretty hard to find, if it's even legal anywhere.