Here in germany we usually don't have someone to do the bagging. The cashier slides it over the scanner, you bag it yourself. And tbh, I'm happy with that - A nearby supermarket had helpers for bagging, with a tip jar. Annoyed the hell out of me. Sure it may be slightly faster because I might not be completely done packing when the cashier is done and I need to pay, but we're talking about a few seconds. And I can't stand anything where tips are expected instead of a thank you for a good service that went beyond what's required anyway. Usually I'd use the lane where nobody was there to help with the packing, even if the line was longer... I might as well scan the items myself as well if they aren't going to bag them.