I would find it extremely difficult to adjust to tipping also. I mean the real price is the cost and 10%. So why dont they just make life simple and make that the price?? I guess doing so would incur a tax on the tip making it less ideal for the employee.
Since when have Americans done anything simply?
The wages structure is completely different for workers in the hospitality industry (and other jobs like doorman where they earn more in tips than a basic wage).
The IRS presumes that tipping occurs and taxes accordingly. You can't just say "I'm a waiter and earn $5,000 year". The IRS calculators just whack on a certain percent and taxes the waiter on the re-calculated amount, declared or not.
It's hard for Aussies and Kiwis to tip, but you have to remember that it's just paying for services in a different way. If you don't tip, the poor waiter has to pay tax on a non-payment. Well, actually, the tips are pooled and then re-distributed, but still it affects all of their take home pay.
Many taxis will drive off rather than take Australians anywhere, because they know there is no tip and that is really what they are living on. The bulk of the fare goes back to the mother company and gas etc.
If you go the USA and see a price in a restaurant, just add 25% for tax and tip and that way you can budget more accurately. Most things you buy in the USA are more than what the price states.
It's a relief to be in Aussieland and not have to worry about it, and it pains us to see people tipping in Australian restaurants.
I hope that sheds some light on the ghastly concept of tipping and convinces you to go with the flow and do what the Americans do when you are in their country.