Context: https://en.wikipedia.org/wiki/Self-censorship
Self-censorship is the act of censoring or classifying one’s own discourse, typically out of fear or deference to the perceived preferences, sensibilities, or infallibility of others, and often without overt external pressure.
All the time, man. Living in society requires it, at least for the sake of not hurting people’s feelings for no reason. And, if you’re a tad smarter than average, you’ll have to let people believe in their nonsense sometimes because you know the odds of them being able to emotionally and intellectually leave these ideological crutches behind are very low. When you know better and handle the world more efficiently, sometimes you gotta allow people to be nonsensical and take the highroad (with great power comes great responsibility and all of that).