An automatic tip of 20+ percent makes no sense to me. The whole tipping in general, really. Especially percentages.
So, if I order a meal on the menu that cost a bit more than someone else at the next table, and the waitress/waiter has done the same amount work, why should I be "socially obligated" to pay more (because tipping in general is based on a percentage of the bill)? Really dumb concept and I don't play that game.
