10 percent tip in US is NOT considered fine!
I look at it this way. Tipping isn't mandatory. It's customary, but in no way mandatory.
If a waiter provides terrible service, I won't tip at all. It would make no sense.
If a waiter provides average service and you don't tip at all, that would not be fine by customary standards, but the restaurant wouldn't make too big of a fuss about it as long as you pay for your meal and taxes.
If a waiter provides average to slightly below-average service, I will give a 10% tip. If they provide average service, I tip 15%. If they provide good service, I tip 20%. If they provide great service, I tip 25%. If they go above and beyond, connect with everyone on the table, offer recommendations for other services outside of the restaurant (Broadway shows, good places to find clothing items, museum recs etc), never skip a beat in refilling all drinks on the table and bring the check at the perfect time, then I tip 30%. If they do all of the aforementioned and I find another reason that I personally connect with them, I then tip 35%.
To each their own, but I have my criteria. You'd be amazed, but I've noticed that some of the worst tippers are rich people and some of the best tippers are poor people.
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