I don't believe so; there are some serious legal problems when restaurants try to claim that tips should be part of what they take in, or when they try to enforce rules around tips.
no they do not
Salaries will vary depending on geographic location and requirements of the job. A limo driver will make significantly more than a UPS driver as tips will be given.
Yes
How much they make will depend upon the driver and how long they work. Taxi cab drivers receive money on the number of trips they have and their tips.
10 %
There are a variety of tips in order to avoid tractor trailer accidents. Some of these tips are for the driver not to drive longer than they can physically stand. If they need to take a break, then they should.
Small tips ($2-3) to porters; no tips in taxis; service charges are usually included in the price.
Russ Bohaty, the race driver trainer, has some interesting tips
Minimum wage plus tips is standard but you will find exceptions.
Starting off, probably minimum wage but you should get tips
"your only pay is how much tip you earn, so it varies depending on how well you serve your customers."^However true this is not the entire truth; servers/waiters do get paid a very small salary depending on where you reside. For instance in Texas the wages are around $2.13-$2.15 an hour +tips and in NY the wages start at around $4.15 ish +tips. You must claim tips every day you work and the tips that you claim + your salary must be equal to or greater than the specific states minimum wage; If it is not than the restaurant you work for must pay you the difference .