Good point Angelo Farina. There is a North American mind set to tipping that causes a great deal of unnecessary hand wringing. While I am still inclined to tip for good service, I would not want to see a 15% gratuity automatically added to the bill.
I have no problem if the bill contains a voice titled "service", amounting to 15% or even 30%. A "gratuity" instead starts to be a problem, as some of our secretaries do not consider it a reimbursable voice. So I will not get refund for it, which of course is bad.
If this money is to pay service personnel, it should be named properly.
And I think that fixing the percentage is much better than leaving to the customer to evaluate the proper amount. Doing so, a pretty girl will earn more money than one less pretty. A serviceman with some mechanical disability will get less money than his colleague, younger and more fit.
This is not socially acceptable to me. I want that all of them get enough money to live decently, and not allowing the customer to give more to people who are already favoured by nature, and give less to people which simply were less gifted.
It is correct to give a premium to workers who take better care of customers, but this should be left to the employer, not to the customer.
Here I see a huge cultural difference between our countries.
And I find that the US approach is really causing troubles, stimulating coworkers to try to be smarter than their colleagues, for getting more tips, instead of helping each other. It is an approach which pushes towards competition for money, something very disgusting for me.
This competitive approach is growing also here, even in the academia (where I work), disrupting a tradition of almost 1000 years of fair, cooperative relationships among colleagues.
With this competitive approach you are stimulated to always try to be evaluated better than your colleagues, instead of helping them to grow and possibly to become smarter than you.
All this starts from this bad habit of tipping, I will always fight against it.