If you go to Chilis or anywhere with those tablets at the table and pay with your card it will auto suggest a 20% tip. I've seen some other places with a diffe

If you go to Chilis or anywhere with those tablets at the table and pay with your card it will auto suggest a 20% tip. I've seen some other places with a different kind of tablet that simply has boxes for different dollar amounts of no tip, but they are typically not places that even have servers. Why would I tip at a retail shop when all I did was grab something off a shelf and bring it to the counter?