Do you tip waiters/waitresses?

“When I am at a restaurant I tip 15% because I think that is a reasonable amount for the work they put in.” Marissa Pollak, 9

“I always pay the waitress, and it’s not even a question for my family. We tip 20% each time.” Nicole Martinez, 10

“I tip based on their performance, so they are the ones deciding the amount. If the waiters aren’t putting forth the effort, that’s on them, and if they are, then they will be rewarded.” McKay Judkins, 11

“I always tip my waitresses and waiters 20%. If my friends don’t tip, I tip for them.” Sam Fagel, 12