Not 'of course' - it's a choice, like the other ones you talk about. This choice isn't a meaningless subjective preference like clothing, but one that results in errors and harm to other people. We are responsible for our errors and for preventing them - claiming the error is inevitable is to make yourself a victim.
I don't judge people unless I have to - it's not hard to learn, especially if you learn from and are responsible for your mistakes; I didn't have to make that mistake many times. And that has been the approach of most wise people I know. There is no other way to prevent those errors: Lacking godlike omniscience, we can't read minds or observe more than a very little; we are prone to serious errors. There's a reason courts and science require objective evidence and strict process; truth is very hard. 'Judge not' goes back a couple thousand years.
When I have to judge - for example, when evaluating job performance - I am very aware of my own limitations. Otherwise misplaced confidence causes even more mistakes.