As long as employers cheap out on labor by making the customers pay for it through tips, you will rightfully be judged. You're not going to change tipping culture by stiffing your server.
Or as the Dude would put it, you're not wrong, you're just an asshole.
Sadly that stupid shit with tipping is coming to brazil slowly, most restaurants in my city ask for 12% or 15% tip. Still optional ofc.
Optional in the US too. No friends nor employees will judge you for 0%?
Some of them absolutely will judge you, remember you, and make sure you get worse service the next time you eat there.
As long as employers cheap out on labor by making the customers pay for it through tips, you will rightfully be judged. You're not going to change tipping culture by stiffing your server.
Or as the Dude would put it, you're not wrong, you're just an asshole.