It's getting increasingly common in Germany as well, especially at bakeries and the like. I recently had one at one of the big coffee chains where it offered

It's getting increasingly common in Germany as well, especially at bakeries and the like. I recently had one at one of the big coffee chains where it offered 10%, 15%, 20% and an unlabeled fourth option. The fourth option went into a submenu with 5%, 10%, 15% and this time a labeled none option, which sent you to a another yes/no screen. I don't avoid the business but I do not feel bad at all not tipping when there is no service involved. And, no, the 3 second interaction of handing me out goods from behind the counter doesn't count. When there is service involved it usually is already included in the price and rounding up is a courtesy but not required.