>You are getting into someone's car and they are taking your pittance, minus their service broker's fee, to bring you where you need to go. That is a business transaction, and it's in the class of transactions that I would expect to involve a tip.
My transaction is between Uber and I and should not be between Uber's employees and I. Do you tip your bus driver? Do you tip the train conductor?
Do you also tip your mechanic if they get your car fixed before schedule? How about the pulmonologist when you get blood drawn? Or is it only if they don't leave a bruise? How about the person who stocked the shelves so the thing you want to buy is in stock? What if an employee goes in the stockroom for you? Do you pull out a $5? What about the person who makes your sandwich at a deli, I mean, making custom sandwiches are labor intensive.
>That's just how I was raised
Sure but...
You can (and should) acknowledge that it is completely arbitrary and cultural. If I go to the bar and order a soda I tip. If I go to McDs and order a soda I don't. That's silly. The thing that really kills me is, I've been to a few wineries. When I pay there's never a line to put my tip on the credit card receipt, so I don't tip. I guess you don't tip in wineries even though they provide you basically the same service as a restaurant or bar and you tip there. The best part though is I also go to breweries and breweries always have a tip line on the receipt! Serving beer where you make it = tip, serving wine where you make it = no tip. MADNESS!
>I tend to assume the service was also poor, and they earned exactly the tip they got!
99.9% of the time poor service is not personally the customer service employee's fault.
I actually really enjoyed my job in fast food. The pay sucked but the work was fine, my coworkers were pleasant, and the restaurant was very well run. The customers were pleasant too because we provided good service. We provided good service because the management gave us the tools to provide good service and expected us to provide good service.