That is precisely what censorship means to me. Censorship covers a lot of bases. Omitting content to spare the effect it can have on someone is censorship. I don't know how you're disqualifying withholding game content from a child from censorship
You are literally proving Zeyphersan's point.
Free speech is not being suppressed. History is not being changed. Facts are not being withheld to fit the agenda of person or institution.
The fact that children are deemed vulnerable and the parent is exercising their right to decide what to expose their child to has nothing to do with censorship. You can disagree all you want to but the moment you undermine the parent's decision you are wrong. And probably a fascist.