I simply don’t tip, period. Tipping as a concept is when the waitress does an extraordinary service for you, I have been in restaurants where the waitresses live to their name and stand by your table changing plates and filling up the drinks, sure, I might tip that, but 99% of restaurants don’t provide such service, bringing plates from the kitchen is something I can do myself or hell, a robot easily does that, and I have been in some places where they ask a tip in fast food and street food! I just put zero with a dead stare.. crazy.