I feel like discriminating on when and where I choose to tip.
Why do you not want to tip?
Usually I just go with my gut.
There's nothing wrong with tipping more for particularly good service, but not tipping at all hurts the person who served you a lot. Most people who accept tips rely on them to make ends meet. Without your tips, they may not be able to afford to pay bills or buy groceries.
I'm not looking to be a slave to tips. I'm free to choose who I tip and when I tip.
It is true that you can choose whether or not to tip, but if you don't tip then people will look down on you as stingy. It's better to just give a small tip if you didn't like the service then to not tip at all.