KeepOnKeepingOn1 Thu 09-Aug-18 16:56:30
According to posts on here this system is terrible for the staff and terrible for customers. (Except for those customers who get off on flashing largesse to buy 'exceptional service').
But staff and regular customers have to accept it.
You have to go along with it because of system and custom otherwise go to Blackpool and/or eat at KFC/McDonalds.
Push past the 'custom' and 'system' bollocks and we find it is great for restaurant owners.
And no one can understand why OP may be confused?
She's not confused. She's just a cheapskate.
Restaurants barely make ends meet. Very few last more than a few years.
And nobody is getting off on flashing largesse. 
Americans tip because they are not tightwads and they know the reality of life for most recent grads or students.
Most have done unpleasant or low paid work themselves as teens or college students, even students at Ivy League universities, and they know how much it costs to live in any major metropolitan area. Many have children who are doing jobs like waiting tables too. I do not know a single professional American who did not do his or her share of scraping trays in a university dining hall or other lowly work.
Waiting tables is what you do to pay the rent while you interview for the job that requires a university degree, or while students are in university, juggling classes by day and waiting tables at night. There are very few waitstaff who do this as their career, all their lives.
They way the system is set up, it incentivises moving on. Ditto the way the requirement to pay back your student loan beginning six months after graduation regardless of your income incentivises getting a job. Maybe that job will be waiting tables... You do the waitering thing until something better comes up. Meanwhile you are required to report your earnings to the IRS and the IRS estimates that your take will reflect 15% tips. There are tax tables to help you figure out how much your quarterly tax check will amount to. You also pay Social Security and Medicare rates.
Funny how many misconceptions there are on this thread.