Tipping is getting out of hand due to the tablet point of sale systems. Places that used to not have tipping now are asking for tips, and it's uncomfortable to say no or requires multiple taps to get to 0%. By default, the point of sale systems should have an easy to find "no tip" option on the initial screen. It also would be better if tips were not requested unless a clear service (preparing food, serving, bussing tables, etc) is provided.