What about all other people who are in service industries that who work hard but you don't see them? A chef, dishwasher?

I don't tip, so I don't go to restaurant, and I carried my bags. I tipped once to a hotel shuttle because our 18 months old had a tantrum from the hotel to the airport and I felt sorry that he had to 'suffer'.

IMO tipping culture is based on a good principle and it's now being twisted into something more like a 'norm'. If a waiter doesn't earn enough from his wages, get another job. To be honest I go to restaurants for the food, and if I can do it myself I'll fetch the plate from the kitchen. I think the worst is the Vegas buffet, I paid the cashier to get in and someone brings me drinks Why? Why don't they just put a jug of water on my table and I can help myself or put a beverage machine out - why should I have to ask someone to get me my comp. drinks? (it's silly since all food are self-service) I don't want to tip the waiter to help me to 'fetch' my drinks. The waitress that 'served' us after the first round without any tip she literally disappeared from our table and I can't ask anyone else to get my drink because they said, 'you need to get the one who served you'. It really sucks that I almost want to ask them where I can refill my own drink, and to be honest I'll do this next time when I'm eating buffet in Vegas.